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Category Archives: Uncategorized
The paper titled “Low-complexity 8-point DCT Approximation Based on Angle Similarity for Image and Video Coding” has been accepted for publication at Springer Multidimensional Systems and Signal Processing (MSSP). Congrats to co-authors Renato Cintra, Thiago Trugillo, Raiza Oliviera, Fabio Bayer, … Continue reading
Our paper titled “Real-Time 2-D FIR Trapezoidal Digital Filters for 2.4 GHz Aperture Receiver Applications” has won a best paper award at IEEE Moratuwa Engineering Research Conference (MerCon) 2018. Congratulations to all co-authors.
The paper titled “Low-Complexity Wideband Transmit Beamforming using Network-Resonant Digital Plane-Wave Filters” has been accepted at IEEE Antennas and Wireless Propagation Letters (AWPL). Congratulations to Chamith Wijenayake, Nilan Udayanga, Sravan Pulipati, Arjuna Madanayake and Dr. Len Bruton.
Vitor Coutingo delivered the research talk titled ““Low-complexity Discrete Transforms and Algorithms for Signal Processing Applications” on invitation by Dr. Arjuna Madanayake. Vitor is a J-1 visiting Ph.D. Candidate from UFPE, Brazil, under supervision from Drs. Renato Cintra and Fabio Bayer.
The ASPC Group, in collaboration with Dr. Nghi Tran, and Dr. Hong Liang (TSU) conducted a 2-day workshop on security-aware digital phased-array design for NSWC, Crane, IN, engineers. Viduneth Ariyarathna, Nilan Udayanga, Sravan Pulipati and Suresh Madhishetty were the resource … Continue reading
The paper titled “Computation of 2D 8×8 DCT Based on the Loeffler Factorization Using Algebraic Integer Encoding” is accepted for publication in IEEE Transactions on Computers. Congratulations to co-authors Renato Cintra, Diego Coelho, Sushma Nimalapalli, Vassil Dimitrov, Arjuna Madanayake and Arnaud … Continue reading
The paper titled “Design and Digital Implementation of Fast and Recursive DCT II-IV Algorithms” is accepted for publication in Circuits, Systems and Signal Processing (CSSP). Many congratulations to Shirani Perera, Arjuna Madanayake, Nathan Dornback, and Nilan Udayanga.
Dr. Arjuna Madanayake, Viduneth Ariyarathna, Sravan Pulipati*, and Suresh Madhishetty contributed to the Brooklyn 5G Summit 2018 at the invitation of NYU-Wireless Founding Director Professor Ted Rappaport. A 32-beam receiver demo was implemented and showcased by UA students. * did … Continue reading
The paper titled “Analog Approximate-FFT 8/16-Beam Algorithms, Architectures and CMOS Circuits for 5G Beamforming MIMO Transceivers” has been accepted for publication. Many congratulations to co-authors Viduneth Ariyarathna, Leo Belostotski, Soumyajit Mandal, Xinyao Tang, Renato Cintra, Arjuna Madanayake and Ted Rappaport. … Continue reading
Professor Shubhendu Bhardwaj from Florida International University (FIU) gave an invited talk titled “Skewed World of Plasma-wave Modeling: Challenges and Solutions using Unconditionally Stable FDTD Methods”.
The paper titled “Real-Time 2-D FIR Trapezoidal Digital Filters for 2.4 GHz Aperture Receiver Applications” has been accepted at IEEE MerCon 2018. Congratulations to co-authors Viduneth Ariyarathna, Vitor A Coutinho (UFPE), Sravan Pulipati, Arjuna Madanayake, Ravi Wijesekara (Univ. of Moratuwa), Chamira Edussooriya … Continue reading
Arjuna Madanayake gave a talk titled “FPGA Signal Processing for Element-wise Digital Multi-Beam Array Transceivers” at the University of Moratuwa, Sri Lanka, on March 29, 2018. The talk was arranged by Dr. Chamira Edussooriya and Dr. Dilum Bandara.
The paper “Wideband N-Beam Arrays using Low-Complexity Algorithms and Mixed Signal Integrated Circuits” has been accepted at IEEE Journal of Selected Topics in Signal Processing. Congratulations to co-authors Shirani Perera, Viduneth Ariyarathna, Nilan Udayanga, Arjuna Madanayake, Ge Wu, Leonid Belostotski, … Continue reading
Arjuna Madanayake is grateful to his colleagues at the University of Akron for this recognition. Thank you so very much.
UA website news item
Dr. Arjuna Madanayake attended the Military Radar Summit 2018 in DC. Link here
Dr. Arjuna Madanayake gave an invited seminar at Florida International University (FIU) titled “Analog and RF Digital Signal Processing Circuits for Massively Multibeam Arrays” on the invitation of Dr. John Volakis.
The STTR Phase-2 Project with Ocius Technologies from DARPA DSO has hit the news: see https://www.eurekalert.org/pub_releases/2018-02/uoa-uoa020518.php
Arjuna Madanayake and Viduneth Ariyarathna attended DARPA Microsystems Technology Office (MTO) Proposer’s Day on the mm-wave digital arrays (MIDAS) program. A poster titled “Analog Approximate-FFT Multibeam Algorithms, Architectures and Space-Time Noise Shaping Circuits for mmW Arrays” was presented. Co-authors include … Continue reading
Two papers have been accepted for publication at IEEE 2018 International Microwave Symposium (IMS). An 8-Beam 2.4 GHz Digital Array Receiver Based on a Fast Multiplierless Spatial DFT Approximation, Vitor Countinho, Viduneth Ariyarathna, Diego Coelho, Renato Cintra, and Arjuna Madanayake. A … Continue reading
The following papers have been accepted for publication at IEEE 2018 International Symposium on Circuits and Systems (ISCAS) to be held in Florence, Italy. Low-Complexity 4-D IIR Filters for Multi-Depth Filtering and Occlusion Suppression in Light Fields, Namalka Liyanage, Chamith Wijenayake, … Continue reading
Dr. Arjuna Madanayake attended the NSF sponsored mmW Research Coordination Network (RCN) workshop at the University of Arizona, 18-19 January 2018. Two posters were presented. 1) Arjuna Madanayake, Jin Wei, Vishal Saxena (University of Idaho), Dimitra Psyhogiou (UC Boulder), Soumyajit … Continue reading
Congratulations to Vítor Coutinho, Renato Cintra, Fábio Bayer, Paulo Oliveira, Raíza Oliveira, and Arjuna Madanayake for the new paper titled “Pruned Discrete Tchebichef Transform Approximation for Image Compression” accepted for publication at Springer Circuits, Systems and Signal Processing (CSSP).
Dr. Arjuna Madanayake attended WinnComm 2017 in San Diego. Two papers were published on the topics of modulation recognition and UAS detection using machine learning based on deep belief networks and convolutional neural nets.
Arjuna Madanayake gave a seminar at Texas Tech in Lubbock, Tx, titled “Algorithms, Circuits and Architectures for Multi-Beam Array Processing, Modulation Recognition, and UAS Classication” on the invitation of Dr. Changzhi Li. We thank Changzhi, Ranadip Pal, and Texas Tech … Continue reading
Viduneth Ariyarathna attended and presented our research in a poster titled “ROACH-2 based Prototype Implementation of an 8-Beam Multiplierless Approximate-DFT Based Aperture Array Receiver” at the 2017 CASPER Workshop. The workshop was held at Caltech in August 2017.
The project titled “SpecEES: Collaborative Research: Spatially Oversampled Dense Multi-Beam Millimeter-Wave Communications for Exponentially Increased Energy-Efficiency” has been approved and starts today! The project is a 4-university collaborative project between the University of Akron, with lead-PI Arjuna Madanayake, Case Western … Continue reading
A 1-day workshop on community infrastructure needs for analog circuit design in NE Ohio was organized and held at Case Western Reserve University (on Aug 18). The workshop is part of an ongoing NSF project between CWRU and the University … Continue reading
Two papers, by Jin Wei, Gihan Mendis and Arjuna Madanayake, have been accepted at 2017 Wireless Innovation Forum Conference on Communications Technologies and Software Defined Radio (WinnComm). The papers are 1) Deep Learning-based Intelligent Method for Automatic Modulation Classification in … Continue reading
Dr. Arjuna Madanayake gave an invited seminar on “Design and Implementation of a 16-Beam Digital Array Receiver” at the Department of Electronic and Telecommunication Engineering (ENTC) at the University of Moratuwa (July 21). The seminar is part of the monthly … Continue reading
The paper titled “Improving ADC Figure-of-Merit in Wideband Antenna Array Receivers using Multidimensional Space-Time Delta-Sigma Multiport Circuits” has been accepted for presentation at IEEE NDS’2017. Congratulations to co-authors Najath Akram, Soumyajit Mandal, Jifu Liang and Leonid Belostotski.
Dr. Arjuna Madanayake gave an invited seminar at the Dominion Radio Astrophysical Observatory (DRAO) in Penticton, BC, Canada, on the topic “Design and Prototype Implementation of an 8-Beam 2.4 GHz Array Receiver for Digital Beamforming”.
The NSF ECCS has awarded the University of Akron and Case Western Reserve University a collaborative proposal titled “Collaborative Research: Wideband Multi-Beam Antenna Arrays: Low-Complexity Algorithms and Analog-CMOS Implementations”. The award includes a sub-award to Embry-Riddle Aeronautical University. Congratulations to … Continue reading
The paper titled “Multidimensional-DSP Beamformers using The ROACH-2 FPGA Platform” has been accepted at MDPI Electronics, Special Issue on Smart Antennas and MIMO Communications, edited by Dr. Hamid Bahrami. Congratulations to co-authors Vishwa Seneviratne and Len Bruton.
Arjuna Madanayake and Jin Wei attended DARPA DSO Discover Day in Arlington, VA. A poster titled “Deep Learning for Wireless Modulation Recognition and Identification of Micro-UAS” was presented. The work is a joint collaboration with Dr. Mingoo Seok at Columbia … Continue reading
The following four papers have been accepted at IEEE Mid-West Symposium on Circuits and Systems (MWSCAS’2017) which will be held in Boston, in August 2017. Viduneth Ariyarathna, Arjuna Madanayake, Leo Belostotski, Shirani Perera, Renato Cintra, and Nilan Udayanga, “Design of … Continue reading
Congratulations to co-authors Viduneth Ariyarathna, Nilan Udayanga, both at UA, Leonid Belostotski (University of Calgary, Canada), Sirani Perera (Embry-Riddle Aeronautical University), and Renato J Cintra (UFPE, Brazil) for the paper titled “Design Methodology of an Analog 9-Beam Squint-Free Wideband IF Multi-Beamformer for mmW Applications” which … Continue reading
The paper titled “Energy-Efficient ULF/VLF Transmitters Based on Mechanically Rotating Dipoles” has been accepted at IEEE Moratuwa Engineering Research Conference (Mercon). Congratulations to co-authors Choi Seungdeog, Mohammad Tarek and Shamini Dharmasena, at UA, and to Soumyajit Mandal, Jarred Glickstein and Alp Sehirlioglu, who are at the Case Western … Continue reading
Professor Renato Cintra of UFPE, Brazil, is visiting the ASPC Lab for about two weeks as part of an on-going collaboration funded by the DARPA Microsystems Technology Office (MTO). Professor Cintra is an expert at approximate transforms and fast algorithms. Welcome, … Continue reading
The paper titled “A Parallel Method for the Computation of Matrix Exponential based on Truncated Neumann Series” is accepted at IEEE ARITH 2017. Deep congratulations to co-authors Vassil Dimitrov, Diego Coelho, Logan Rakai, all at the University of Calgary, Canada, … Continue reading
Dr. Arjuna Madanayake attended the Brooklyn 5G Summit, 2017, held at NYU-Tandon with the leadership of Professor Ted Rappaport. The summit is sponsored mainly by Nokia. We are grateful to Dr. Rappaport for the invitation.
Arjuna Madanayake gave an invited seminar at Manhattan College, NY, on the invitation of Professor George Giakos. The topic was “Analog Co-Processors for Solving Linear and Nonlinear Partial Differential Equations”. The talk covers the Phase-I progress in a DARPA DSO … Continue reading
Arjuna Madanayake gave a talk at Columbia University, NY, as part of the Columbia Integrated Systems Laboratory (CISL) Seminar Series, on the invitation of Professor Mingoo Seok. The title of the talk was “Analog Co-Processors for Solving Linear and Nonlinear … Continue reading
Arjuna Madanayake gave a talk titled “Analog Co-Processors for Solving Linear and Nonlinear Partial Differential Equations” on the invitation of Professor Soumyajit Mandal at Case Western Reserve University (CWRU). The talk covers the progress made in the first year of … Continue reading
Arjuna Madanayake and Jin Wei attended the DARPA MTO Lifelong Learning Machines (L2M) Proposer’s Day at the DARPA Conference Center. A poster titled “Deep learning based distributed multi-beam UAS-tracking radar solutions” was presented.
Dr. Arjuna Madanayake attended GOMACTech’2017 in Reno, Nevada. He presented a paper in the Phased-Arrays session.
Congratulations to co-authors Paulo Oliveira, Raiza Oliveira, Renato Cintra, and Fábio Bayer for the paper titled “JPEG quantisation requires bit-shifts only”, to appear in IET Electronics Letters.
Dr. Arjuna Madanayake and Nilan Udayanga attended the 2017 Military Radar Summit, in Washington DC.
The paper titled “DFT Computation using Gauss-Eisenstein Basis: FFT Algorithms and VLSI Architectures” has been accepted for publication in IEEE Trans. on Computers. Well done, co-authors Diego Coelho, Renato Cintra, Vassil Dimitrov, Nilanka Rajapaksha, and Gihan Mendis.
Four abstracts have been accepted at the IEEE CCAA Workshop organized by NASA Glenn. Congratulations to all authors. The abstracts are 1. Digital Architecture for Real-Time CNN-based Face Detection for Video Processing, with Smrity Bhattari, Renato Cintra (UFPE), Stefan Duffner … Continue reading
The paper “All-Pass Filter based Synthesis of Multifunctional Microwave Active Circuits” has been accepted for publication at IEEE Vehicular Technologies Conference (VTC) to be held in Australia. VTC’2017 is scheduled to be held in Sydney, 4-7 June. Congratulations to Chamith … Continue reading
The paper titled “0.96-to-5.1GHz 4-Element Spatial-Analog IIR-enhanced Delay-and-Sum Beamformer” has been accepted at IEEE IMS 2017, to be presented in Hawaii this summer. Congratulations to co-authors Peyman Ahmadi and Leo Belostotski from the University of Calgary.
The paper titled “A New 2nd–Order Allpass Filter in 130nm CMOS” with lead authors from the University of Calgary, Canada, has been accepted for presentation at the IEEE International Symposium on Circuits and Systems (ISCAS), Special Session on papers recently … Continue reading
Sravan Pulipati has defended his MS. The thesis topic is “Electronically-Scanned Wideband Digital Aperture Antenna Arrays using Multi-Dimensional Space-Time Circuit-Network Resonance”. The project was co-advised by Dr. Arjuna Madanayake and Dr. Nghi Tran, with committee member Dr. Kye-Shin Lee, and … Continue reading
Congratulations to Smrity Bhattarai for defending her MS thesis on “Digital Architecture for Real-time Face Detection for Deep Video Packet Inspection Systems”. The project was co-advised with Dr. Ryan Toonen, and is a collaborative effort with Dr. Renato Cintra, UFPE, … Continue reading
The ASPC Lab organized a guest talk titled “Nuclear fusion in up-down asymmetric tokamaks” . The speaker was Dr. Justin Ball- a post-doc at École Polytechnique Fédérale de Lausanne in Switzerland.
Arjuna Madanayake attended the DARPA ACCESS Kick-Off Meeting at the Executive Conference Center. Arjuna gave an invited seminar on the findings of an analog RF-IC computational acceleration project (DARPA STTR Program-Phase-I), in collaboration with Ocius Technologies. The ACCESS event was … Continue reading
Arjuna Madanayake attended and presented findings on sigma-delta spatio-temporal beamforming arrays at the Kickoff Workshop of the mmW RCN in Washington, DC. This is a collaborative project with Dr. Soumyajit Mandal at CWRU. The mmW RCN was organized by a … Continue reading
The paper “Analog 65nm CMOS 5GHz Sub-Arrays with ROACH-2 FPGA Beamformers for Hybrid Aperture-Array Receivers” has been accepted for presentation at GoMacTech-2017. Congratulations to Viduneth, Nilan, Ali, Soumyajit, Peyman and Leo.
The paper titled “Deep Learning-Based Automated Modulation Classification for Cognitive Radio” has been accepted at IEEE ICCS2016. Congratulations to co-authors Gihan Mendis and Jin Wei.
The paper titled “Fast Algorithms and Architectures for 8-point DST-II/DST-VII Approximations” has been accepted for publication at the Journal of Circuits, Systems and Computers (JCSC). Congratulations to Renato, Fabio, Amila and Uma.
The proposal titled “CI-P: Collaborative Project: Planning for Community Infrastructure to Support Research for Simulating Complex Systems”, $50,003, is being awarded by NSF. This is a joint research with Dr. Soumyajit Mandal at CWRU and PIs Arjuna Madanayake and SI … Continue reading
The paper titled “Deep Learning Based Doppler Radar for Micro UAS Detection and Classification” has been accepted at MILCOM’2016. Congratulations to Jin Wei and Gihan Mendis.
The paper titled “Multiplierless 16-point DCT approximation for low-complexity image and video coding” is accepted for publication at Signal, Image and Video Processing. Congratulations, to Thiago, Raiza and Renato.
Arjuna Madanayake gave a talk titled “Approximate DFT Algorithms for RF Multi-Beam Beamforming” at the 2016 International Industrial Mathematics Conference, held in June 2016 in Sri Lanka.
Congratulations to Suranga Handagala, for defending his MS thesis on “Special Relativistic Array Multi-Port Circuits with Spacetime Noise-Shaping”. Committee consisted of Arjuna Madanayake (adviser), Ryan Toonen, Kye-Shin Lee and Joan Carletta.
Congratulations to Vishwa Seneviratne for defending his MS thesis titled “Design and Rapid Prototyping of Multi-dimensional DSP Beamformers using ROACH-2 Platform”. Committee consisted of Arjuna Madanayake (adviser), Joan Carletta, and SI Hariharan.
Congratulations to Gihan Mendis, for successfully defending his thesis on “Hardware Implementation and Applications of Deep Belief Networks”. Committee consisted of Jin Wei (adviser), Arjuna Madanayake (co-adviser), and SI Hariharan.
The paper titled “Mixed Microwave-Digital and Multi-Rate Approach for Wideband Beamforming Applications Using 2-D IIR Beam Filters and Nested Uniform Linear Arrays” is accepted into the Special Issue on Array Processing at MSSP. Congratulations to Viduneth Ariyarathna, Len Bruton, and … Continue reading
The paper “Applications of RF Aperture-Array Spatially-Bandpass 2-D IIR Filters in Sub-Nyquist Spectrum Sensing, Wideband Doppler Radar and Radio Astronomy Beamforming” has been accepted at Multi-Dimensional Systems and Signal Processing. Congratulations to Nilan Udayanga, Tharindu Randeny, Chamith Wijenayake, Arindam Sengupta, … Continue reading
The paper titled “A 480MHz ROACH-2 FPGA Realization of 2-Phase 2-D IIR Beam Filters for Digital RF Apertures” has won the best-paper award under the “Telecommunications” track at IEEE MerCon’2016. Congratulations to Vishwa Seneviratne and co-authors. A second paper titled … Continue reading
Many congratulations to Arindam Sengupta, Roberto Gomez-Garcia and Leo Belostotski for the paper titled “Wide-Band Aperture Array Using a Four-channel Manifold-Type Planar Multiplexer and Digital 2-D IIR Filterbank” in Circuit Theory and Applications (CTA).
The paper titled “Error-Free Computation of 8-point DCT Based on the Loeffler Factorization and Algebraic Integers” is accepted in the journal IET Signal Processing. Congratulations to Renato Cintra, Vassil Dimitrov, Diego Coelho and Sunera Kulasekera.
The paper “Wideband Delay-Sum Digital Aperture Using Thiran All-Pass Fractional Delay Filters” has been accepted for lecture presentation at the IEEE 2016 Radar Conference (http://radarconf16.org). Congratulations, Nilan Udayanga and Viduneth Ariyarathna.
The journal paper titled “Fast FPGA-Architecture for Fan/Beam-Steering in Wave-Digital RF Aperture Arrays” has been accepted at Multidimensional Systems and Signal Processing (MSSP). Congratulations to Sewwandi Wijeratne, Nilanka Rajapaksha and Professor Len Bruton (University of Calgary).
The paper titled “Linear RF Apertures Using 2-D Analog Beam Filters” written with Chamith Wijenayake, Leonid Belostotski, Len Bruton and Yongsheng Xu has been accepted as a lecture presentation in the RF circuit session at ISCAS’2016.
The DARPA STTR proposal titled “Analog Co-Processors for Complex System Simulation and Design” with Ocius Technologies (Dr. Dale Mugler) has been selected for negotiation. The Co-PI is Dr. SI Hariharan.
Many congratulations, to Viduneth Ariyarathna, for defending his MS thesis titled “Scanned/Multi-Beam Aperture Array Processing using a Combined Analog IC and Digital Systems Approach”. Committee members include Dr. Nghi Tran and Dr. Kye-Shin Lee. This research was sponsored by the National … Continue reading
Congratulations to Fabio, Vitor, Sunera, Andre and Renato, for the paper titled “Energy-efficient 8-point DCT Approximations: Theory and Hardware Architectures”. This paper is now accepted for publication at the journal Circuits, Systems and Signal Processing (CSSP), published by Springer.
The paper titled “Low-complexity Image and Video Coding Based on an Approximate Discrete Tchebichef Transform” has been accepted at IEEE TCSVT. Congratulations to Paulo, Renato, Fabio, and Sunera.
Dr. Nghi Tran and Dr. Arjuna Madanayake received an award to explore STEM Education topics on Embedded Systems Security, from the Office of Naval Research (ONR). The University of Akron sub-award component is worth $360,000. The total award is $600,000, … Continue reading
Dr. Arjuna Madanayake and collaborator Dr. Renato Cintra secured a 1-year project titled “Multi-Beam RF Aperture Arrays using Multiplierless Approximate FFT” from the Defense Advanced Research Projects Agency (DARPA). The project is sponsored by the Microsystems Technology Office (MTO).
Congratulations to Peyman Ahmadi, Brent Maundy, Ahmed Elwakil, Leonid Belostotski and Arjuna Madanayake for their paper titled “A New 2nd-Order Allpass Filter in 130nm CMOS”, which has been accepted for publication in IEEE Trans. on Circuits and Systems-II: Express Briefs.
Dr. Arjuna Madanayake attended IEEE Multi-Dimensional Systems (nDS)’ 2015, in Vila Real, Portugal. He presented two papers, with student authors Suranga Handagala, Nilan Udayanga, and Vishwa Seneviratne.
Deep congratulations to Nilan Udayanga for the successful defense of his MS thesis on “Digital 2-D/3-D Beam Filters for Adaptive Applebaum Receive and Transmit Arrays”. Nilan’s work was supported by the Office of Naval Research (ONR) (Dr. Santanu Das) and … Continue reading
Congratulations to Nilan and Viduneth and our collaborators Dr. L.T. Bruton (University of Calgary, Canada) and Dr. Pan Agathoklis (University of Victoria, Canada) for two papers accepted at IEEE ICICS, 2015, to be held in Singapore in December 2015. The … Continue reading
Congratulations to Vishwa, Suranga, and Nilan for their accepted papers at IEEE N-dimensional Systems (NDS), to be held in Vila Real, Portugal, in September 2015. The papers are S. Handagala, A. Madanayake and N. Udayanga, “Design of a Millimeter-Wave Dish-Antenna … Continue reading
MS student Smrity Bhattarai joins the group. She will be working on an NSF funded research on RF orbital angular momentum of photons and resulting vortex waves.
Congratulations to Sunera for successfully defending his MS thesis. Sunera’s thesis is titled “Multiplierless DFT, DCT Approximations for Multi-Beam RF Aperture and HEVC HD Video Applications: Digital Systems Implementation” and is a collaborative work with Dr. Renato Cintra and Dr. … Continue reading
Many congratulations to Arindam Sengupta, who has moved from NRAO Greenbank to Google, CA. Arindam worked on mixed microwave-digital beamformers at the ASPC lab.
ASPC Lab welcomes PhD Candidate Farzad Ahmadi (primary adviser Dr. Igor Tsukerman) to the team. Farzad will be working on antenna design, electromagnetic band gap structures and meta-materials for advanced array signal processing.
Dr. Madanayake’s 2014 NSF EARS REU intern Degrafth Palmore as won an Ohio Space Grants Consortium (OSGC) scholarship from NASA for his ongoing research with the ASPC team in 2015-16. Congratulations, Degrafth!
ASPC Lab welcomes incoming ECE freshman Julia Hariharan, as well as ECE sophomores Adrianna Dunlap and Yamini Yamini as part time summer research interns. Adrianna and Yamini are supported by NSF as part of our broader impacts activities.
A workshop covering advanced topics related to ROACH2 based digital system design was organized by Arjuna Madanayake in collaboration with John Ford, Arindam Sengupta and Jason Ray at the Greenbank Telescope (GBT) in West Virginia. This two-day workshop was attended … Continue reading
Dr. Arjuna Madanayake and Dr. Vijay Devabhaktuni organized the first NE Ohio undergraduate/graduate workshop on “ROACH2 based FPGA Systems” at the ASPC Lab on May 30 2015. Four students from the University of Toledo and six students from the University … Continue reading
Drs. Madanayake, Toonen and Zhu, with their collaborator Dr. Henderson at UT Dallas, has been awarded an NSF ECCS Collaborative Award “Enhancement of Radio Wave Beams Carrying Extrinsic Orbital Angular Momentum: Multi-Dimensional Array Processors, Multiferroic Antennas, and RF Integrated Circuits”. … Continue reading
Dr. Arjuna Madanayake and Dr. Zhiping (Penn) Lin organized a special session on “Recent Advances in Multidimensional Systems and Signal Processing”, at IEEE International Symposium on Circuits and Systems (ISCAS) 2015 in Lisbon, Portugal. This session was made possible by … Continue reading
Deep congratulations to Tharindu Randeny for his successful MS thesis defense. The thesis title is “Multidimensional Digital Signal Processing in Radar Signature Extraction”. Tharindu’s MS was supported in part by the College of Engineering, UARF and NSF Enhancing Access to … Continue reading
The paper titled “Multi-way Impedance-varying Power Dividers for Wideband Applications” by Vijay Devabhaktuni, Khair Alshamaileh and Arjuna Madanayake has been accepted for publication at the International Journal of RF and Microwave Computer Aided Engineering. Congratulations Khair and Vijay!
Arjuna Madanayake delivered the Keynote Speech at IEEE MERCon’2015 at the University of Moratuwa, on Wednesday April 8, 2015. Slides.
ASPC doctoral graduate Nilanka Rajapaksha is moving to San Jose California to join Xilinx. Dr Rajapaksha will be working as a software engineer for the “Device Modeling Group” dealing with propagation delay models for Xilinx FPGA Electronic Design Automation (EDA) … Continue reading
Congratulations to ASPC graduate student Viduneth Ariyarathna for being selected for the IEEE 2015 International Microwave Symposium (IMS) +RFIC PhD student sponsorship iniative.
The paper “Low Noise Amplifier Design Considerations For Use in Antenna Arrays” with Leo Belostotski, Karl Warnick and Bruce Veidt, has been accepted for publication at IEEE Trans. on Antennas and Propagation.
The Senior Design Team (Adam, Mark, Tom, Zach) advised by Arjuna Madanayake is a finalist at the 2015 Intel-Cornell Cup Competition. The “Wirelessly powered elephant tracking device” project will compete at the finals coming up in Florida in late … Continue reading
Three papers have been accepted for publication at IEEE Moratuwa Engineering Research Conference (MerCon)’2015, to be held in April 2015, in Sri Lanka. The papers are: “Aperture-Array Directional Sensing using 2-D Beam Digital Filters with Doppler-Radar Front-Ends ” with Tharindu … Continue reading
Congratulations to Vitor, Sunera, Fabio and Renato for winning the best paper award at CONELECOMP for the paper titled “Low-complexity Pruned 8-point DCT Approximations for Image Encoding”.
Congratulations to Nilan, Chamith and Len Bruton, for the paper “Electronically Steerable Directed Energy using Space-Time Network Resonant Digital Systems”, which has been accepted for publication and presentation at the 2015 IEEE Antennas and Propagation Symposium (AP-S). The conference is … Continue reading
The first PhD graduate from the ASPC lab, Dr. Chamith Wijenayake, has started a tenure-track faculty position at the University of New South Wales (UNSW) in Australia. Many congratulations. We wish him all success in his academic work. Dr. Wijenayake’s … Continue reading
The ASPC lab is proud of our colleague, Dr Hamid Bahrami, for his grant from NSF from the EARS program. Many congratulations, Hamid. http://www.uakron.edu/im/news/lab-to-study-how-a-fly-can-boost-your-handhelds-battery
The paper titled “Multi-beam 4 GHz Microwave Apertures Using Current-Mode DFT Approximation on 65 nm CMOS” has been accepted for publication at IEEE IMS 2015. The authors are Viduneth Ariyawansa, Sunera Kulasekera, Dora Suarez, Renato Cintra, Fabio Bayer, Kye-Shin Lee, … Continue reading
The paper “Applebaum Adaptive Array Apertures with 2-D IIR Space-Time Circuit-Network Resonant Pre-Filters” written with Nilan Udayanga, Chamith Wijenayake and Roberto Acosta as been accepted at RadarCon. Congratulations!
Our paper “Multi-Beam Receiver Apertures Using Multiplierless 8-Point Approximate DFT” written with Sunera Kulasekara, Renato Cintra, Fabio Bayer and Dora Suarez, has been accepted at IEEE Radar Conference 2015. The conference will be held in Arlington, Virginia. Congratulations to all … Continue reading
The paper “Digital VLSI Architectures for Beam-Enhanced RF Aperture Arrays” with Sewwandi Wijeratna, Chamith Wijenayake, and Len Bruton has been accepted at IEEE TAES. Many congratulations!
Papers “Recent Advances in Multidimensional Systems and Signal Processing: an Overview” with Chamith Wijenayake, Nathan Dornback and Zhiping Lin (NTU, Singapore), and “Tunable Multiband RF CMOS Active Filter Arrays” with Nilan Udayanga, Chamith Wijenayake, Peyman Ahmadi and Leo Belostotski, have … Continue reading
The paper “Fast Computation of Residual Complexity Image Similarity Metric Using Low-complexity Transforms” has been accepted at the journal IET Image Processing. Many congratulations to Yves Pauchard, Renato Cintra, and Fabio Bayer.
The ASPC group warmly welcomes new graduate students Sravan Pulipati, Janith Mendis, Suranga Handagala and Vishwa Seneviratne, for 2015. All the best in your graduate studies.
Congratulations to Leo, Peyman and Taghavi, for the paper titled “A 0.13-μm CMOS Current-Mode All-Pass Filter for Multi-GHz Operation”, which has been accepted for publication at IEEE Trans. on VLSI Systems.
The paper titled “Low-complexity Pruned 8-point DCT Approximations for Image Encoding” has been accepted for publication at CONIELECOMP 2015. Congratulations to co-authors Vitor, Renato, Fábio, and Sunera.
MS graduate Arindam Sengupta will be interning at the NRAO Robert C. Byrd Radio Telescope at Greenbank, West Virginia (see https://science.nrao.edu/facilities/gbt). He will be working on FPGA designs using CASPER tools for RF digital signal processing. Many congratulations on being … Continue reading
Many congratulations to Paulo Oliveira, Renato Cintra, Fabio Bayer, Sunera Kulasekara, and Arjuna Madanayake for their recently accepted paper “A Discrete Tchebichef Transform Approximation for Image and Video Coding”, at IEEE Signal Processing Letters (SPL).
Deep congratulations to Nilanka, for successfully defending his PhD dissertation titled “Wave-Digital Filter based Circuits for Beamformers and RF-FPGAs”. Nilanka is the second PhD to complete his doctoral studies from the ASPC lab. The work was supported by the College … Continue reading
The paper “Multi-Beam RF Aperture using Multiplierless FFT Approximation” has been accepted for publication at IET Electronics Letters. Many congratulations to Dora, Renato, Fabio and Sunera!
The paper titled “VLSI Computational Architectures for the Arithmetic Cosine Transform” has been accepted for publication at IEEE Trans. on Computers. Many congratulations to Nilanka, Renato, Jithra and Vassil.
The paper titled “Continuous-Time Mode 2-D IIR Filter Enhanced Time-Delay Linear Aperture Arrays” with Chamith Wijenayake and Leo Belostotski has been accepted for a lecture presentation at IEEE RWS’2015. The conference will be held in San Diego, CA, in early … Continue reading
Two papers from our research group continues to be mentioned in the most popular list for IEEE Transactions on Circuits and Systems-I:Regular Papers. See details by clicking here TCAS1Aug.
Chamith Wijenayake has defended his PhD. Many congratulations! Dr Wijenayake is the first PhD from the ASPC group.
The July 2014 most popular downloads list for IEEE Transactions on Circuits and Systems-I:Regular Papers has two of our papers included. Access full list here. The position #1 is occupied by “Improved 8-Point Approximate DCT for Image and Video Compression … Continue reading
The ASPC group warmly welcomes professor Renato Cintra, from UFPE, Brazil. Dr Cintra will collaborate with ASPC team members for two weeks during his Akron visit. Welcome Renato!
ASPC group welcomes new MS student Viduneth Ariyarathna to the research team.
Dr Arjuna Madanayake accepts an invitation by Professor M.N.S. Swamy to serve as an Associate Editor (AE) for Springer Circuits, Systems and Signal Processing (CSSP) journal.
Arindam Sengupta successfully defended his MS thesis titled “Multi-Dimensional Signal Processing using Mixed-Microwave-Digital Circuits and Systems”. Congratulations! The work was in collaboration with Vassil Dimitrov (University of Calgary, Canada), Renato Cintra (UFPE, Brazil), Leo Belostotski (University of Calgary, Canada), Glenn … Continue reading
The proposal titled “Collaborative Research: Electronically-Scanned Wideband Digital Aperture Antenna Arrays using Multi-Dimensional Space-Time Circuit-Network Resonance: Theory and Hardware” addressing multi-dimensional sparse-array digital filters for beamforming applications has been awarded by NSF. The work is a collaboration with Dr Xin … Continue reading
MS student Sewwandi Wijeratna successfully defended her MS thesis. Congratulations! Her thesis is titled FPGA Architectures for Fast-Steerable Beam-Enhanced Digital Aperture Arrays, funded by Office of Naval Research.
Our paper with MS students Uma Potluri, Sunera Kulasekara and Amila Edirisuriya, and collaborators Fabio Bayer and Renato Cintra, is ranked #6 in the “Top Accessed” list for IEEE Transactions on Circuits and Systems-I:Regular Papers. See #6 in http://ieeexplore.ieee.org/xpl/topAccessedArticles.jsp?punumber=8919
The paper titled “An orthogonal 16-point approximate DCT for image and video compression” has been accepted at MSSP. The authors include Thiago Silveira, Alice Kozakevicius, Renato Cintra, Fabio Bayer and Sunera Kulasekara. Congratulations!
Arjuna Madanayake co-organized a circuits workshop at Norfolk State University (NSU) for regional high-school students as part of the NSF EARS broader impacts program. The UA student assistant team, lead by MS student Arindam Sengupta, consisted of Sewwandi, Nilan, DeGrafth, … Continue reading
The official blog of our NSF funded EARS undergraduate research experience program goes live. Check out the blog run by students DeGrafth Palmore and Nathan Dornback (sophomores) and Julia Hariharan (high-school senior) at http://aspcundergradresearch.blogspot.com/
The ASPC group has been awarded $8000 by the IEEE Circuits and Systems Society (CASS) for outreach activities involving undergraduates in the NE Ohio region.
The paper titled “Systolic-Array Architecture for Steerable Multi-Beam VHF Wave-Digital RF Apertures” with Nilanka Rajapaksha and Dr Len Bruton has been accepted at IEEE Aerospace and Electronic Systems. Congratulations!
NSF REU students Nathan and DeGrafth with high-school intern Julia succeeded in designing, simulating, fabricating and measuring a monopole antenna tuned at 2.4 GHz. They used CST Microwave Studio and J.D. Kraus’s textbook to design the antenna and an Agilent … Continue reading
The invited review paper “Low-Power VLSI Architectures for DCT/DWT: Precision vs Approximation for HD Video, Biomedical, and Smart Antenna Applications” has been accepted for publication in the IEEE Circuits and Systems society magazine. Deep congratulations to all collaborators and students … Continue reading
The paper titled “Recent advances in software-defined radars: chirped impulses” is accepted for publication at EUSIPCO’2014. Deep congratulations to lead authors José-María Muñoz-Ferreras and Roberto Gomez-Garcia at Alcala University, Spain!
Nathan Dornback and DeGrafth Palmore started their summer research at the ASPC lab on May 30. This undergraduate research is powered by an NSF REU Supplement to our EARS award.
Arindam Sengupta attends IEEE RadarCon’2014 to present a paper on focal plane array signal processing for radar applications. This work is a collaboration with Leo Belostotski (Canada) and Roberto Gomez-Garcia (Spain).
Several MS students attended and gave four papers at SPIE DSS in Baltimore. Photo shows Sunera, Arindam and Sewwandi.
Dr Arjuna Madanayake gives a seminar on recent progress in digital aperture array research at the 2014 Office of Naval Research (ONR) Code 31 Communications Gathering, held at the Naval Research Lab (NRL) in Washington, DC.
Variable Digital Audio Processor (VDAP) won an honorable mention along with the Entrepreneurship Award at Intel Cornel Cup 2014 competition for their Senior Design Project. Congratulations Team!
Dr Arjuna Madanayake thanks Dr George Haddad and NSF for the REU Supplement for our 2012 EARS Award. The supplement will support two undergraduate students Nathan Dornback and DeGrafth Palmore for a summer of research experience in the Advanced Signal … Continue reading
The ASPC group and the Department of Electrical and Computer Engineering is proud to announce that senior doctoral student Chamith Wijenayake has been selected for the 2014 IEEE Circuits and Systems Society pre-doctoral scholarship. Congratulations Chamith!
The abstract for a new paper on “Analog 2-D IIR Beam Filters for EARS in UAS Ecosystems” has been accepted at the 2014 APS/URSI symposium, to be held in Tennessee, in July 2014. Congratulations to Leo, Chamith, Len and Vijay!
The paper “2D-IIR Time-Delay-Sum Linear Aperture Arrays” has been accepted at IEEE Antennas and Wireless Propagation Letters (AWPL). Congratulations to Sewwandi, Chamith, Roberto and Dr Hariharan.
Chamith Wijenayake and Nilanka Rajapaksha have successfully defended their doctoral proposals this february. Many congratulations. Both students are direct-PhD students under the advice of Dr Madanayake.
The invited paper “All-Pass Filter-Based 2-D IIR Filter-Enhanced Beamformers for AESA Receivers” has been accepted at IEEE Trans. on Circuits and Systems-I:Regular Papers, special issue on ISCAS’2013. Many congratulations to Chamith Wijenayake, Leo Belostotski, Len Bruton and Yongsheng Xu!
See an article on my undergraduate student’s company. Vetta Sounds is building a fully digital amplifier for electrostatic speakers following her undergraduate senior design project.
Our proposal to ONR on “Rectangular Aperture Arrays based on 3D IIR Space Time Rf to Bits Digital Beam Filters” has been funded! We gratefully acknowledge the support of Program Manager Dr Santanu Das. The project will support three RAs … Continue reading
The paper “3D recursive beam-enhanced analog aperture array with improved interference rejection capabilities” was accepted at SPIE DSS. Congratulations to Chamith Wijenayake and Leo Belostotski.
Arjuna Madanayake and Roberto Gomez-Garcia co-organized a workshop on “Recent Advances on Radar Systems for Defense/Security, Localization and other Emerging Applications” at IEEE Radio and Wireless Week, 2014, in Newport Beach, CA. Dr Madanayake gave a talk on “Fundamental Theory … Continue reading
The paper titled “A 3-D Spatially-FIR RF Frustum Digital Filter with Microwave Channelization for FPAs” has been accepted at the IEEE 2014 Radar conference, to be held in Cincinnati Ohio. Congratulations to Arindam Sengupta, Leo Belostotski and Roberto Gomez-Garcia!
Three papers accepted at SPIE DSS. These are “Wideband aperture array using RF channelizers and massively-parallel digital 2D IIR filterbank” with Arindam Sengupta and Roberto Gomez-Garcia, “Low-complexity multiplierless DCT/DST approximations for low-power HEVC digital IP cores” with Fabio Bayer, Sunera … Continue reading
New paper accepted at SPIE defense, security + sensing, titled “Direction estimation, source location, and modulation detection for RF sources using steerable 3D IIR beam filters”. Congratulations to Nilan and Chamith.
Two papers, titled “Directional Cyclostationary Feature Detectors Using 2-D IIR RF Spiral-Antenna Beam Digital Filters” with Nilan, Chamith, Vijay and Mohammad, and “Hexagonal Multi-Beam Analog RF Aperture Array” with Chamith and Len, are accepted at IEEE ISCAS’14. Congratulations to all authors!
Deep congratulations to Uma Potluri, Soumya Kondapalli and Shiva Madhishetty, who graduated with MS in Electrical Engineering this fall 2013! These international students (from India) have done extremely well, with seven top-quality journal papers between them. In the picture, from … Continue reading
The paper titled “Precise VLSI Architecture for AI based 1-D/ 2-D Daub-6 Wavelet Filter banks with Low Adder-Count” has been accepted for publication at IEEE Trans. on Circuits and Systems-I:Regular Papers. Congratulations to Shiva, Renato and Vassil!
Poster summarizing progress at the end of year 1 of NSF EARS project. The poster presentation at the NSF EARS PI meeting held in October in DC is available on the NSF website.
Dr Renato Cintra is back. He will be a visiting professor at the ASPC Lab for two weeks. Warm welcome, Renato!
Congratulations to Uma, Renato, Vassil and Fabio for the paper “Multiplierless Approximate 4-point DCT VLSI Architectures for Transform Block Coding” which has been accepted at Electronic Letters.
Our Senior Design Team 01, VDAP – Variable Digital Audio Processor has been selected as a finalist in the Cornell Cup embedded systems competition to be held in Florida next year. Congrats to the team (Dylan Fashbaugh, Kyle Lepley, Brian … Continue reading
The paper “Improved 8-Point Approximate DCT for Image and Video Compression Requiring Only 14 Additions” has been accepted at IEEE Transactions on Circuits and Systems-I:Regular Papers. Congratulations to Uma, Renato, Fabio, Sunera and Amila!
Our EARS collaborator Dr Sen Xin moves to Old Dominion University. See Dr Xin’s new research page by clicking here. All the best for a bright future Sen!
Sunera Kulasekara and Tharindu Randeny joined the ASPC Group this Fall. A warm welcome!
Nilan Udayanga joined the ASPC Group as a research assistant for the NSF project on Enhancing Access to Radio Spectrum (EARS). Welcome Nilan!
Hello and welcome to Dr Arjuna Madanayake’s research homepage. Old news items for the period December 2009 – August 2013 is given below. August 2013 The paper “Reconfigurable Phase-Linearizer for 2-D IIR RF-to-Bits Antenna-Array Digital Beam Filters” is accepted at … Continue reading