The University of Queensland

Real-time light field signal processing using 4D/5D linear digital filter FPGA circuits

Edussooriya, C. U.S., Wijenayake, C., Madanayake, A., Liyanage, N., Premaratne, S., Vorhies, J. T., Dansereau, D. G., Agathoklis, P. and Bruton, L. T. (2021). Real-time light field signal processing using 4D/5D linear digital filter FPGA circuits. IEEE Transactions on Circuits and Systems II: Express Briefs, 68 (7) 9349089, 2735-2741. doi: 10.1109/TCSII.2021.3057388

Wave-digital filter circuits for single-chip 4-D light field depth-based enhancement

Gullapalli, Sai K., Edussooriya, Chamira U. S., Wijenayake, Chamith, Dansereau, Donald G., Bruton, Len T. and Madanayake, Arjuna (2021). Wave-digital filter circuits for single-chip 4-D light field depth-based enhancement. Multidimensional Systems and Signal Processing, 32 (2), 607-631. doi: 10.1007/s11045-020-00751-y

Multi-volumetric refocusing of light fields

Jayaweera, Sakila S., Edussooriya, Chamira U. S., Wijenayake, Chamith, Agathoklis, Panajotis and Bruton, Len T. (2021). Multi-volumetric refocusing of light fields. IEEE Signal Processing Letters, 28 9291467, 31-35. doi: 10.1109/lsp.2020.3043990

Real-time light field denoising using a novel linear 4-D hyperfan filter

Premaratne, Sanduni U., Liyanage, Namalka, Edussooriya, Chamira U. S. and Wijenayake, Chamith (2020). Real-time light field denoising using a novel linear 4-D hyperfan filter. IEEE Transactions on Circuits and Systems I: Regular Papers, 67 (8) 9051850, 2693-2706. doi: 10.1109/tcsi.2020.2981387

An adaptive denoising algorithm for improving frequency estimation and tracking

Wijenayake, Chamith, Antonir, Amir, Keller, Gabriele and Ignjatovic, Aleksandar (2020). An adaptive denoising algorithm for improving frequency estimation and tracking. IEEE Transactions on Circuits and Systems II: Express Briefs, 67 (1) 8638557, 172-176. doi: 10.1109/TCSII.2019.2898451

Multi-depth filtering and occlusion suppression in 4-D light fields: algorithms and architectures

Liyanage, Namalka, Wijenayake, Chamith, Edussooriya, Chamira, Madanayake, Arjuna, Agathoklis, Pan, Bruton, Len T. and Ambikairajah, Eliathamby (2020). Multi-depth filtering and occlusion suppression in 4-D light fields: algorithms and architectures. Signal Processing, 167 107294, 1-13. doi: 10.1016/j.sigpro.2019.107294

Classifying IoT devices in smart environments using network traffic characteristics

Sivanathan, Arunan, Gharakheili, Hassan Habibi, Loi, Franco, Radford, Adam, Wijenayake, Chamith, Vishwanath, Arun and Sivaraman, Vijay (2019). Classifying IoT devices in smart environments using network traffic characteristics. IEEE Transactions on Mobile Computing, 18 (8) 8440758, 1745-1759. doi: 10.1109/TMC.2018.2866249

Design and implementation of 5-D IIR depth velocity filters for light field video processing

Wijenayake, C., Liyanage, N., Edussooriya, C. U. S., Seatang, H., Agathoklis, P. and Bruton, L. T. (2019). Design and implementation of 5-D IIR depth velocity filters for light field video processing. IEEE Transactions on Circuits and Systems II: Express Briefs, 66 (7) 8486731, 1267-1271. doi: 10.1109/TCSII.2018.2874940

On reconstruction of bandlimited signals from purely timing information

Wijenayake, Chamith, Ignjatovic, Aleksandar and Keller, Gabriele (2019). On reconstruction of bandlimited signals from purely timing information. Signal Processing, 159, 89-92. doi: 10.1016/j.sigpro.2019.02.002

Signal recovery algorithm for 2-level amplitude sampling using chromatic signal approximations

Wijenayake, Chamith, Scutts, Jarryd and Ignjatović, Aleksandar (2018). Signal recovery algorithm for 2-level amplitude sampling using chromatic signal approximations. Signal Processing, 153, 143-152. doi: 10.1016/j.sigpro.2018.07.009

Blended induction program for electronic engineering freshmen

Dayawansa, Indra, Wijenayake, Chamith, Edussooriya, Chamira, Samarasekara, Thusitha, Karunasekara, Chamanthi, Dias, Dileeka, Samarasinghe, Kithsiri, Kulasekere, Chulantha, Rodrigo, Ranga and Dayananda, Nuwan (2018). Blended induction program for electronic engineering freshmen. International Journal of Electrical Engineering Education, 55 (4), 354-366. doi: 10.1177/0020720918775034

Low-Complexity wideband transmit beamforming using network-resonant digital plane-wave filters

Wijenayake, Chamith, Pulipati, Sravan, Madanayake, Arjuna, Udayanga, Nilan and Bruton, Len (2018). Low-Complexity wideband transmit beamforming using network-resonant digital plane-wave filters. IEEE Antennas and Wireless Propagation Letters, 17 (7), 1300-1304. doi: 10.1109/LAWP.2018.2842764

Chromatic derivatives and approximations in practice - part I: a general framework

Ignjatović, Aleksandar, Wijenayake, Chamith and Keller, Gabriele (2018). Chromatic derivatives and approximations in practice - part I: a general framework. IEEE Transactions on Signal Processing, 66 (6) 8239824, 1498-1512. doi: 10.1109/TSP.2017.2787127

Chromatic derivatives and approximations in practice - part II: nonuniform sampling, zero-crossings reconstruction, and denoising

Ignjatović, Aleksandar, Wijenayake, Chamith and Keller, Gabriele (2018). Chromatic derivatives and approximations in practice - part II: nonuniform sampling, zero-crossings reconstruction, and denoising. IEEE Transactions on Signal Processing, 66 (6) 8239866, 1513-1525. doi: 10.1109/TSP.2017.2787149

Applications of RF aperture-array spatially-bandpass 2-D IIR filters in sub-Nyquist spectrum sensing, wideband doppler radar and radio astronomy beamforming

Madanayake, Arjuna, Randeny, Tharindu, Udayanga, Nilan, Sengupta, Arindam, Jones, Glenn, Wijenayake, Chamith and Bruton, Len T. (2017). Applications of RF aperture-array spatially-bandpass 2-D IIR filters in sub-Nyquist spectrum sensing, wideband doppler radar and radio astronomy beamforming. Multidimensional Systems and Signal Processing, 28 (4), 1523-1548. doi: 10.1007/s11045-016-0423-2

Digital VLSI architectures for beam-enhanced RF aperture arrays

Wijayaratna, Sewwandi, Madanayake, Arjuna, Wijenayake, Chamith and Bruton, Len T. (2015). Digital VLSI architectures for beam-enhanced RF aperture arrays. IEEE Transactions on Aerospace and Electronic Systems, 51 (3) 7272847, 1996-2011. doi: 10.1109/TAES.2015.140507

All-pass filter-based 2-D IIR filter-enhanced beamformers for AESA receivers

Wijenayake, Chamith, Madanayake, Arjuna, Belostotski, Leonid, Xu, Yongsheng and Bruton, Len (2014). All-pass filter-based 2-D IIR filter-enhanced beamformers for AESA receivers. IEEE Transactions on Circuits and Systems. Part 1: Regular Papers, 61 (5) 6779687, 1331-1342. doi: 10.1109/TCSI.2014.2309833

Electronically scanned RF-to-bits beam aperture arrays using 2-D IIR spatially bandpass digital filters

Madanayake, Arjuna, Wijenayake, Chamith, Joshi, Rimesh, Almalkawi, Mohammad, Belostotski, Leonid, Bruton, Len and Devabhaktuni, Vijay (2014). Electronically scanned RF-to-bits beam aperture arrays using 2-D IIR spatially bandpass digital filters. Multidimensional Systems and Signal Processing, 25 (2, SI), 313-335. doi: 10.1007/s11045-013-0250-7

2-D-IIR time-delay-sum linear aperture arrays

Madanayake, Arjuna, Wijenayake, Chamith, Wijayaratna, Sewwandi, Acosta, Roberto and Hariharan, S. I. (2014). 2-D-IIR time-delay-sum linear aperture arrays. IEEE Antennas and Wireless Propagation Letters, 13 6767044, 591-594. doi: 10.1109/LAWP.2014.2312109

Space-time spectral white spaces in cognitive radio: theory, algorithms, and circuits

Wijenayake, Chamith, Madanayake, Arjuna, Kota, John and Bruton, Len (2013). Space-time spectral white spaces in cognitive radio: theory, algorithms, and circuits. IEEE Journal on Emerging and Selected Topics in Circuits and Systems, 3 (4) 6626347, 640-653. doi: 10.1109/JETCAS.2013.2280805

A 2-D signal processing model to predict the effect of mutual coupling on array factor

Kota, John, Madanayake, Arjuna, Belostotski, Leonid, Wijenayake, Chamith and Bruton, Len T. (2013). A 2-D signal processing model to predict the effect of mutual coupling on array factor. IEEE Antennas and Wireless Propagation Letters, 12 6601655, 1264-1267. doi: 10.1109/LAWP.2013.2282272

Multidimensional (MD) circuits and systems for emerging applications including cognitive radio, radio astronomy, robot vision and imaging

Madanayake, Arjuna, Wijenayake, Chamith, Dansereau, Donald G., Gunaratne, Thushara K., Bruton, Leonard T. and Williams, Stefan B. (2013). Multidimensional (MD) circuits and systems for emerging applications including cognitive radio, radio astronomy, robot vision and imaging. IEEE Circuits and Systems Magazine, 13 (1) 6468142, 10-43. doi: 10.1109/MCAS.2012.2237141

Integral form 4-D light field filters using Xilinx FPGAs and 45 nm CMOS technology

Wimalagunarathne, Randeel, Wijenayake, Chamith, Madanayake, Arjuna, Dansereau, Donald G. and Bruton, Len T. (2013). Integral form 4-D light field filters using Xilinx FPGAs and 45 nm CMOS technology. Multidimensional Systems and Signal Processing, 26 (1), 47-65. doi: 10.1007/s11045-013-0235-6

Broadband multiple cone-beam 3-D IIR digital filters applied to planar dense aperture arrays

Wijenayake, Chamith, Madanayake, Arjuna and Bruton, Len (2012). Broadband multiple cone-beam 3-D IIR digital filters applied to planar dense aperture arrays. IEEE Transactions on Antennas and Propagation, 60 (11) 6257436, 5136-5146. doi: 10.1109/TAP.2012.2211316

Continuous-time analog two-dimensional IIR beam filters

Bruton, Leonard T., Madanayake, Arjuna, Wijenayake, Chamith and Maini, Mona (2012). Continuous-time analog two-dimensional IIR beam filters. IEEE Transactions on Circuits and Systems II: Express Briefs, 59 (7) 6225427, 419-423. doi: 10.1109/TCSII.2012.2200170

RF analog beamforming fan filters using CMOS all-pass time delay approximations

Wijenayake, Chamith, Xu, Yongsheng, Madanayake, Arjuna, Belostotski, Leonid and Bruton, Len T. (2012). RF analog beamforming fan filters using CMOS all-pass time delay approximations. IEEE Transactions on Circuits and Systems I: Regular Papers, 59 (5) 6162970, 1061-1073. doi: 10.1109/TCSI.2012.2185294

Exploring the Performance of Generative AI Tools in Electrical Engineering Education

Zhong, Zhaofeng, Wijenayake, Chamith and Edussooriya, Chamira U. S. (2023). Exploring the Performance of Generative AI Tools in Electrical Engineering Education. IEEE. doi: 10.1109/tale56641.2023.10398370

Investigating Different Approaches on Online Laboratory Practices

Tomeo-Reyes, Inmaculada, Chen, Zhuoyu, Wijenayake, Chamith and Khatamianfar, Arash (2023). Investigating Different Approaches on Online Laboratory Practices. IEEE. doi: 10.1109/tale56641.2023.10398338

A Low-Complexity 2-D FIR Parallelogram Filter for Broadband Beamforming with Sparse Linear Arrays

Pakiyarajah, Darukeesan, Edussooriya, Chamira U. S., Wijenayake, Chamith and Madanayake, Arjuna (2023). A Low-Complexity 2-D FIR Parallelogram Filter for Broadband Beamforming with Sparse Linear Arrays. IEEE. doi: 10.1109/mercon60487.2023.10355500

Minimax Design of M-D Complex-Coefficient FIR Filters with Nearly-Constant Low Group Delays

Pakiyarajah, Darukeesan, Chamira Edussooriya, U. S., Wijenayake, Chamith and Madanayake, Arjuna (2023). Minimax Design of M-D Complex-Coefficient FIR Filters with Nearly-Constant Low Group Delays. IEEE. doi: 10.1109/mercon60487.2023.10355448

Combined Approximate Transforms and Approximate Computing for Low-Complexity Multibeam Arrays

Nanthakumar, Pathmapirian, Wijenayake, Chamith, Edussooriya, Chamira U. S. and Madanayake, Arjuna (2023). Combined Approximate Transforms and Approximate Computing for Low-Complexity Multibeam Arrays. 2023 22nd International Symposium on Communications and Information Technologies (ISCIT), Sydney, NSW Australia, 16-18 October 2023. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/iscit57293.2023.10376103

Low-complexity DFT-based multibeamforming arrays with configurable beam profiles

Nanthakumar, Pathmapirian, Wijenayake, Chamith, Edussooriya, Chamira U. S. and Madanayake, Arjuna (2023). Low-complexity DFT-based multibeamforming arrays with configurable beam profiles. 2023 IEEE Region 10 Symposium, TENSYMP 2023, Canberra, ACT Australia, 6-8 September 2023. Piscataway, NJ, United States: IEEE. doi: 10.1109/tensymp55890.2023.10223668

MUSIC algorithm for young mathematicians and engineers

De Silva, Raveen, Antonir, Amir, Ignjatovic, Aleksandar and Wijenayake, Chamith (2022). MUSIC algorithm for young mathematicians and engineers. 33rd Australasian Association for Engineering Education Conference, Sydney, Australia, 4-7 December 2022. Australasian Association for Engineering Education.

Mostly online project-based learning during the COVID-19 pandemic

D'Souza, Matthew, Khatamianfar, Arash and Wijenayake, Chamith (2022). Mostly online project-based learning during the COVID-19 pandemic. 33rd Australasian Association for Engineering Education Conference, Sydney, Australia, 4-7 December 2022. Australasian Association for Engineering Education.

A mostly-online CAS teaching experience

Wijenayake, C., Wickremasinghe, K., Abarajithan, G., Madanayake, A., Edussooriya, C. and Samarasinghe, K. (2022). A mostly-online CAS teaching experience. IEEE International Symposium on Circuits and Systems (ISCAS), Austin, TX, United States, 27 May-1 June 2022. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/ISCAS48785.2022.9937429

Weighted least-squares design of 2-D IIR filters with arbitrary frequency response using iterative second-order cone programming

Pakiyarajah, Darukeesan, Dissanayake, Nadeeshan D. K., Edussooriya, Chamira U. S., Wijenayake, Chamith and Madanayakes, Arjuna (2022). Weighted least-squares design of 2-D IIR filters with arbitrary frequency response using iterative second-order cone programming. IEEE International Symposium on Circuits and Systems (ISCAS), Austin, TX, United States, 27 May-1 June 2022. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/ISCAS48785.2022.9937617

Improving the attenuation of moving interfering objects in videos using shifted-velocity filtering

Edussooriya, Chamira U.S., Marasinghe, Dileepa, Wijenayake, Chamith, Bruton, Len T. and Agathoklis, Panajotis (2021). Improving the attenuation of moving interfering objects in videos using shifted-velocity filtering. 2021 IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea, 22-28 May 2021. Piscataway, NJ USA: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS51556.2021.9401316

Managing Hands-on Electrical and Computer Engineering Labs during the COVID-19 Pandemic

Wijenayake, Chamith, D'souza, Matthew, Khatamianfar, Arash, Bialkowski, Konstanty, Ros, Montserrat and Sutton, Peter (2021). Managing Hands-on Electrical and Computer Engineering Labs during the COVID-19 Pandemic. IEEE International Conference on Engineering, Technology and Education (IEEE TALE), Wuhan, Peoples Republic of China, 5-8 December 2021. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/TALE52509.2021.9678716

WLS design of M-D complex-coefficient FIR filters with low group delay using second-order cone programming

Pakiyarajah, Darukeesan, Jayaweera, Sakila S., Edussooriya, Chamira U. S., Wijenayake, Chamith and Madanayake, Arjuna (2021). WLS design of M-D complex-coefficient FIR filters with low group delay using second-order cone programming. 2021 IEEE International Symposium on Circuits and Systems (ISCAS), Daegu, Korea, 22-28 May 2021. Piscataway, NJ USA: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS51556.2021.9401512

Making sense of occluded scenes using light field pre-processing and deep-learning

Liyanage, Namalka, Abeywardena, Kalana, Jayaweera, Sakila S., Wijenayake, Chamith, Edussooriya, Chamira U. S. and Seneviratne, Suranga (2020). Making sense of occluded scenes using light field pre-processing and deep-learning. IEEE Region 10 Annual International Conference, Osaka, Japan, 16-19 November 2020. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/TENCON50793.2020.9293774

FPGA-Based 2-D FIR frost beamformers with digital mutual coupling compensation

Pulipati, Sravan, Ariyarathna, Viduneth, Jayaweera, Ashira L., Edussooriya, Chamira U. S., Wijenayake, Chamith, Belostotski, Leonid and Madanayake, Arjuna (2020). FPGA-Based 2-D FIR frost beamformers with digital mutual coupling compensation. 2020 IEEE/MTT-S International Microwave Symposium (IMS), Los Angeles, CA United States, 4-6 August 2020. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/IMS30576.2020.9224004

Multi depth-velocity filters for enhancing multiple moving objects in 5-D light field videos

Liyanage, Namalka, Jayaweera, Sakila S., Edussooriya, Chamira U. S., Wijenayake, Chamith, Madanayake, Arjuna, Agathoklis, Panajotis, Bruton, Len and Ambikairajah, Eliathamby (2020). Multi depth-velocity filters for enhancing multiple moving objects in 5-D light field videos. Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 28-30 July 2020. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/MERCon50084.2020.9185284

Low-complexity real-time light field compression using 4-D approximate DCT

Liyanage, Namalka, Wijenayake, Chamith, Edussooriya, Chamira U.S., Madanayake, Arjuna, Cintra, Renato and Ambikairajah, Eliathamby (2020). Low-complexity real-time light field compression using 4-D approximate DCT. 2020 IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain, 12-14 October 2020. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS45731.2020.9180755

Minimax design of 2-d complex-coefficient FIR filters with low group delay using semidefinite programming

Jayaweera, Ashira L., Jayaweera, Sakila S., Edussooriya, Chamira U.S., Wijenayake, Chamith and Madanayake, Arjuna (2020). Minimax design of 2-d complex-coefficient FIR filters with low group delay using semidefinite programming. 2020 IEEE International Symposium on Circuits and Systems (ISCAS), Seville, Spain, 12-14 October 2020. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS45731.2020.9181047

A 4-D sparse FIR hyperfan filter for volumetric refocusing of light fields by hard thresholding

Premaratne, Sanduni U., Edussooriya, Chamira U. S., Wijenayake, Chamith, Bruton, Len T. and Agathoklis, Panajotis (2019). A 4-D sparse FIR hyperfan filter for volumetric refocusing of light fields by hard thresholding. International Conference on Digital Signal Processing (DSP), Shanghai, China, 19-21 November 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ICDSP.2018.8631601

Concept-focused in-class demonstrations for teaching embedded system design in large classes

Wijenayake, Chamith, Gilbert, Will, Van Winden, Simon and Ahmed, Beena (2019). Concept-focused in-class demonstrations for teaching embedded system design in large classes. 2018 IEEE International Conference on Teaching, Assessment, and Learning for Engineering, TALE 2018, Wollongong, NSW, Australia, 4-7 December 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/TALE.2018.8615178

Implementation guidelines for an automated grading tool to assess short answer questions on digital circuit design course

Ahmed, Beena, Kagita, Mohan, Wijenayake, Chamith Abewardana and Ravishankar, Jayashri (2019). Implementation guidelines for an automated grading tool to assess short answer questions on digital circuit design course. 2018 IEEE International Conference on Teaching, Assessment, and Learning for Engineering, TALE 2018, Wollongong, NSW, Australia, 4-7 December 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/TALE.2018.8615228

Low-complexity wideband transmit array using variable-precision 2-d sparse FIR digital filters

Edussooriya, C. U.S., Wijenayake, C., Pulipati, S., Madanayake, A. and Bruton, L. T. (2019). Low-complexity wideband transmit array using variable-precision 2-d sparse FIR digital filters. IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, 26-29 May 2019. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2019.8702602

Phoneme specific modelling and scoring techniques for anti spoofing system

Suthokumar, Gajan, Sriskandaraja, Kaavya, Sethu, Vidhyasaharan, Wijenayake, Chamith and Ambikairajah, Eliathamby (2019). Phoneme specific modelling and scoring techniques for anti spoofing system. IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP), Brighton, United Kingdom, 12-17 May 2019. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/ICASSP.2019.8682411

Real-time FPGA-based multi-beam directional sensing of 2.4 GHz ISM RF sources

Pulipati, Sravan, Ariyarathna, Viduneth, Edussooriya, Chamira U. S., Wijenayake, Chamith, Wang, Xin and Madanayake, Arjuna (2019). Real-time FPGA-based multi-beam directional sensing of 2.4 GHz ISM RF sources. Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 3-5 July 2019. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/MERCon.2019.8818787

Reduced-complexity depth filtering and occlusion suppression using modulated-sparse light fields

Liyanage, Namalka, Wijenayake, Chamith, Edussooriya, Chamira U.S. and Ambikairajah, Eliathamby (2019). Reduced-complexity depth filtering and occlusion suppression using modulated-sparse light fields. IEEE International Symposium on Circuits and Systems (ISCAS), Sapporo, Japan, 26-29 May 2019. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2019.8702412

Use of claimed speaker models for replay detection

Suthokumar, Gajan, Sriskandaraja, Kaavya, Sethu, Vidhyasaharan, Wijenayake, Chamith, Ambikairajah, Eliathamby and Li, Haizhou (2019). Use of claimed speaker models for replay detection. Asia-Pacific Signal and Information Processing Association Annual Summit and Conference (APSIPA ASC), Honolulu, HI, United States, 12-15 November 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.23919/APSIPA.2018.8659510

An investigation about the scalability of the spoofing detection system

Suthokumar, Gajan, Sriskandaraja, Kaavya, Sethu, Vidhyasaharan, Wijenayake, Chamith and Ambikairajah, Eliathamby (2018). An investigation about the scalability of the spoofing detection system. 2018 IEEE International Conference on Information and Automation for Sustainability (ICIAfS), Colombo, Sri Lanka, 21-22 December 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/ICIAFS.2018.8913369

Low-complexity 4-D IIR filters for multi-depth filtering and occlusion suppression in light fields

Liyanage, Namalka, Wijenayake, Chamith, Edussooriya, Chamira, Madanayake, Arjuna, Agathoklis, Pan, Ambikairajah, Eliathamby and Bruton, Len (2018). Low-complexity 4-D IIR filters for multi-depth filtering and occlusion suppression in light fields. IEEE International Symposium on Circuits and Systems (ISCAS), Florence, Italy, 27-30 May 2018. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2018.8350971

Modulation dynamic features for the detection of replay attacks

Suthokumar, Gajan, Sethu, Vidhyasaharan, Wijenayake, Chamith and Ambikairajah, Eliathamby (2018). Modulation dynamic features for the detection of replay attacks. 19th Annual Conference of the International Speech Communication Association (INTERSPEECH 2018), Hyderabad, India, 2-6 September 2018. BAIXAS: International Speech Communication Association. doi: 10.21437/Interspeech.2018-1846

Multidimensional spatio-temporal filters for depth-velocity filtering in light field videos

Edussooriya, Chamira U. S., Wijenayake, Chamith, Bruton, Len T. and Agathoklis, Panajotis (2018). Multidimensional spatio-temporal filters for depth-velocity filtering in light field videos. 2017 IEEE International Conference on Industrial and Information Systems (ICIIS), Peradeniya, Sri Lanka, 15-16 December 2017. Piscataway, NJ United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ICIINFS.2017.8300353

A flipped mode approach to teaching an electronic system design course

Cetin, Ediz, Wijenayake, C., Sethu, V. and Ambikairajah, E. (2017). A flipped mode approach to teaching an electronic system design course. IEEE International Conference on Teaching, Assessment and Learning for Engineering (TALE), Hong Kong, China, 12-14 December 2017. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/TALE.2017.8252337

All-pass filter based synthesis of multifunctional microwave active circuits

Udayanga, Nilan, Madanayake, Arjuna, Wijenayake, Chamith, Ahmadi, Peyman, Belostotski, Leonid, Maundy, Brent, Bruton, Len T. and Elwakil, Ahmed (2017). All-pass filter based synthesis of multifunctional microwave active circuits. IEEE 85th Vehicular Technology Conference (VTC Spring), Sydney, NSW, Australia, 4-7 June 2017. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/VTCSpring.2017.8108422

Characterizing and classifying IoT traffic in smart cities and campuses

Sivanathan, Arunan, Sherratt, Daniel, Gharakheili, Hassan Habibi, Radford, Adam, Wijenayake, Chamith, Vishwanath, Arun and Sivaraman, Vijay (2017). Characterizing and classifying IoT traffic in smart cities and campuses. 2017 IEEE Conference on Computer Communications Workshops (INFOCOM WKSHPS), Atlanta, GA USA, 1-4 May 2017. Piscataway, NJ USA: Institute of Electrical and Electronics Engineers. doi: 10.1109/INFCOMW.2017.8116438

Independent modelling of high and low energy speech frames for spoofing detection

Suthokumar, Gajan, Sriskandaraja, Kaavya, Sethu, Vidhyasaharan, Wijenayake, Chamith and Ambikairajah, Eliathamby (2017). Independent modelling of high and low energy speech frames for spoofing detection. 18th Annual Conference of the International Speech Communication Association (INTERSPEECH 2017), Stockholm, Sweden, 20-24 August 2017. BAIXAS: International Speech Communication Association. doi: 10.21437/Interspeech.2017-836

Increasing SINR of microwave Applebaum adaptive arrays using analog 2D-IIR space-time network-resonant beam filters

Udayanga, Nilan, Madanayake, Arjuna, Wijenayake, Chamith and Bruton, Len T. (2016). Increasing SINR of microwave Applebaum adaptive arrays using analog 2D-IIR space-time network-resonant beam filters. 10th International Conference on Information, Communications and Signal Processing (ICICS), Singapore, Singapore, 2-4 December 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ICICS.2015.7459861

Linear RF apertures using 2-D analog beam filters

Wijenayake, Chamith, Madanayake, Arjuna, Belostotski, Leonid, Xu, Yongsheng and Bruton, Len T. (2016). Linear RF apertures using 2-D analog beam filters. IEEE International Symposium on Circuits and Systems (ISCAS), Montreal, QC, Canada, 22-25 May 2016. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers Inc.. doi: 10.1109/ISCAS.2016.7527228

An overview of multi-dimensional RF signal processing for array receivers

Madanayake, Arjuna, Wijenayake, Chamith, Belostotski, Leonid and Bruton, Len T. (2015). An overview of multi-dimensional RF signal processing for array receivers. Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 7-8 April 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/MERCon.2015.7112355

Applebaum adaptive array apertures with 2-D IIR space-time circuit-network resonant pre-filters

Udayanga, Nilan, Madanayake, Arjuna, Wijenayake, Chamith and Acosta, Roberto (2015). Applebaum adaptive array apertures with 2-D IIR space-time circuit-network resonant pre-filters. IEEE Radar Conference (RadarCon), Arlington, VA, United States, 10-15 May 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/RADAR.2015.7131070

Continuous-time 2-D IIR+time-delay linear aperture arrays

Madanayake, Arjuna, Wijenayake, Chamith and Belestotski, Leonid (2015). Continuous-time 2-D IIR+time-delay linear aperture arrays. IEEE Radio and Wireless Symposium (RWS), San Diego, CA, United States, 25-28 January 2015. Piscataway, NJ, United States: IEEE Computer Society. doi: 10.1109/RWS.2015.7129736

Electronically steerable directed energy using space-time network resonant digital systems

Madanayake, Arjuna, Udayanga, Nilan, Wijenayake, Chamith and Bruton, Len (2015). Electronically steerable directed energy using space-time network resonant digital systems. IEEE International Symposium on Antennas and Propagation and USNC/URSI National Radio Science Meeting, Vancouver, BC, Canada, 19-24 July 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/APS.2015.7305530

FPGA-based network-resonance applebaum adaptive arrays for directional spectrum sensing

Udayanga, Nilan, Madanayake, Arjuna and Wijenayake, Chamith (2015). FPGA-based network-resonance applebaum adaptive arrays for directional spectrum sensing. IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS), Fort Collins, CO, United States, 2-5 August 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/MWSCAS.2015.7282165

Multi-beam 8×8 RF aperture digital beamformers using multiplierless 2-D FFT approximations

Kulasekera, Sunera, Madanayake, Arjuna, Wijenayake, Chamicth, Bayer, Fabio M., Suarez, Dora and Cintra, Renato J. (2015). Multi-beam 8×8 RF aperture digital beamformers using multiplierless 2-D FFT approximations. Moratuwa Engineering Research Conference (MERCon), Moratuwa, Sri Lanka, 7-8 April 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/MERCon.2015.7112356

Recent advances in multidimensional systems and signal processing: an overview

Madanayake, Arjuna, Wijenayake, Chamith, Lin, Zhiping and Dornback, Nathan (2015). Recent advances in multidimensional systems and signal processing: an overview. EEE International Symposium on Circuits and Systems (ISCAS), Lisbon, Portugal, 24-27 May 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2015.7169159

Tunable multiband RF CMOS active filter arrays

Udayanga, Nilan, Madanayake, Arjuna, Wijenayake, Chamith, Ahmadi, Peyman and Belostotski, Leonid (2015). Tunable multiband RF CMOS active filter arrays. IEEE International Symposium on Circuits and Systems (ISCAS), Lisbon, Portugal, 24-27 May 2015. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2015.7168975

Analog 2-D IIR beam filters for EARS in UAS ecosystems

Madanayake, Arjuna, Belostotski, Leonid, Wijenayake, Chamith, Bruton, Len and Devabhaktuni, Vijay (2014). Analog 2-D IIR beam filters for EARS in UAS ecosystems. IEEE Antennas and Propagation Society International Symposium (APSURSI), Memphis, TN, United States, 6-11 July 2014. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/APS.2014.6904823

Combined time-delay FIR and 2-D IIR filters for EARS, radar, and imaging applications

Madanayake, Arjuna, Wijayaratna, Sewwandi and Wijenayake, Chamith (2014). Combined time-delay FIR and 2-D IIR filters for EARS, radar, and imaging applications. IEEE 57th International Midwest Symposium on Circuits and Systems (MWSCAS), College Station, TX, United States, 3-6 August 2014. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers . doi: 10.1109/MWSCAS.2014.6908472

Direction/location estimation and modulation detection for RF sources using steerable 3D IIR digital beam filters

Udayanga, Nilan, Madanayake, Arjuna and Wijenayake, Chamith (2014). Direction/location estimation and modulation detection for RF sources using steerable 3D IIR digital beam filters. Conference on Wireless Sensing, Localization, and Processing IX, Baltimore, MD, United States, 5-9 May 2014. BELLINGHAM: SPIE. doi: 10.1117/12.2050800

Directional cyclostationary feature detectors using 2-D IIR RF spiral-antenna beam digital filters

Madanayake, Arjuna, Udayanga, Nilan, Wijenayake, Chamith, Almalkawi, Mohammad and Devabhaktuni, Vijay (2014). Directional cyclostationary feature detectors using 2-D IIR RF spiral-antenna beam digital filters. IEEE International Symposium on Circuits and Systems (ISCAS), Melbourne, VIC, Australia, 1-5 June 2014. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2014.6865680

Hexagonal multi-beam analog RF aperture array

Wijenayake, Chamith, Madanayake, Arjuna and Bruton, Len (2014). Hexagonal multi-beam analog RF aperture array. IEEE International Symposium on Circuits and Systems (ISCAS), Melbourne, VIC, Australia, 1-5 June 2014. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2014.6865476

A Steerable DC-1 GHz all-pass filter-Sum RF space-time 2-D beam filter in 65 nm CMOS

Wijenayake, Chamith, Madanayake, Arjuna, Xu, Yonghseng, Belostotski, Leonid and Bruton, Len T. (2013). A Steerable DC-1 GHz all-pass filter-Sum RF space-time 2-D beam filter in 65 nm CMOS. IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, 19-23 May 2013. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2013.6572086

DOA-estimation and source-localization in CR-networks using steerable 2-D IIR beam filters

Wijenayake, Chamith, Madanayake, Arjuna, Bruton, Len T. and Devabhaktuni, Vijay (2013). DOA-estimation and source-localization in CR-networks using steerable 2-D IIR beam filters. IEEE International Symposium on Circuits and Systems (ISCAS), Beijing, China, 19-23 May 2013. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2013.6571783

Low-complexity algorithms for spatio-temporal directional spectrum sensing with applications in cognitive radio

Madanayake, Arjuna, Wijenayake, Chamith, Potluri, Uma, Judith, V. and Mugler, Dale (2013). Low-complexity algorithms for spatio-temporal directional spectrum sensing with applications in cognitive radio. Conference on Wireless Sensing, Localization, and Processing VIII, Baltimore, MD, United States, 29 April - 3 May 2013. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.2016107

Rejection of interference and near-field coupled LNA-noise on FPA-fed multibeam dish antennas using 3-D analog filters

Madanayake, Arjuna, Wijenayake, Chamith, Gunarathne, Thushara, Belostotski, Leonid, Xu, Yongsheng and Bruton, Len (2013). Rejection of interference and near-field coupled LNA-noise on FPA-fed multibeam dish antennas using 3-D analog filters. Conference on Radar Sensor Technology XVII, Baltimore, MD, United States, 29 April - 3 May 2013. BELLINGHAM: SPIE-INT SOC OPTICAL ENGINEERING. doi: 10.1117/12.2016093

Directional spectrum sensing using tunable multi-D space-time discrete filters

Madanayake, A., Wijenayake, C., Tran, N., Cooklev, T., Hum, S. V. and Bruton, L. T. (2012). Directional spectrum sensing using tunable multi-D space-time discrete filters. 2012 IEEE International Symposium on a World of Wireless, Mobile and Multimedia Networks (WoWMoM), San Francisco, CA United States, 25-28 June 2012. Piscataway, NJ United States: IEEE. doi: 10.1109/WoWMoM.2012.6263754

Discrete space continuous time 2D delay block using 2D all-pass frequency planar networks

Wijenayake, Chamith, Madanayake, Arjuna, Xu, Yongsheng, Belostotski, Leonid and Bruton, Len T. (2012). Discrete space continuous time 2D delay block using 2D all-pass frequency planar networks. IIEEE International Symposium on Circuits and Systems (ISCAS), Seoul, South Korea, 20-23 May 2012. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2012.6272120

Teaching freshmen VHDL-based digital design

Madanayake, Arjuna, Wijenayake, Chamith, Joshi, Rimesh M., Grover, Jim, Carletta, Joan, Adams, Jay, Hartley, Tom and Ogunfunmi, Tokunbo (2012). Teaching freshmen VHDL-based digital design. IEEE International Symposium on Circuits and Systems (ISCAS), Seoul, South Korea, 20-23 May 2012. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2012.6271865

Recent progress on analog/digital VLSI 2D filter circuits for beamforming antenna arrays

Wijenayake, Chamith, Madanayake, Arjuna, Belostotski, Leonid and Bruton, Len T. (2011). Recent progress on analog/digital VLSI 2D filter circuits for beamforming antenna arrays. doi: 10.1109/nDS.2011.6076832

A new class of spatially-discrete time-continuous 2D IIR filters based on wave-digital-filter theory

Madanayake, Arjuna, Rajapaksha, Nilanka, Wijenayake, Chamith, Lee, Kye-Shin, Bruton, Len T. and Belostotski, Leonid (2011). A new class of spatially-discrete time-continuous 2D IIR filters based on wave-digital-filter theory. doi: 10.1109/PACRIM.2011.6032976

Analog 2D fan filters from discrete domain transfer functions

Madanayake, Arjuna, Belostotski, Leonid, Wijenayake, Chamith and Bruton, Len T. (2011). Analog 2D fan filters from discrete domain transfer functions. IEEE International Symposium of Circuits and Systems (ISCAS), Rio de Janeiro, Brazil, 15-18 May 2011. Piscataway, NJ, United States: Institute of Electrical and Electronics Engineers. doi: 10.1109/ISCAS.2011.5937897

FPGA-prototypes of differential-form 2D-IIR systolic-array DSP architectures for multi-beam plane-wave filters

Wijenayake, C. K., Madanayake, A. and Bruton, L. T. (2010). FPGA-prototypes of differential-form 2D-IIR systolic-array DSP architectures for multi-beam plane-wave filters. doi: 10.1109/SIPS.2010.5624763

Raster-scanned wave-digital filter architectures for multi-beam 2D IIR broadband beamforming

Rajapaksha, N. T., Wijenayake, C., Madanayake, A. and Bruton, L. T. (2010). Raster-scanned wave-digital filter architectures for multi-beam 2D IIR broadband beamforming. doi: 10.1109/ICM.2010.5696086

Systolic-array architecture for 2D IIR wideband dual-beam space-time plane-wave filters

Wijenayake, Chamith, Madanayake, Arjuna and Bruton, Len T. (2010). Systolic-array architecture for 2D IIR wideband dual-beam space-time plane-wave filters. doi: 10.1109/MWSCAS.2010.5548677