Publications

Refereed Journal Papers

2020

Graph-Based Blind Hyperspectral Unmixing via Nonnegative Matrix Factorization; Bhathiya Rathnayake, E.M.M.B. Ekanayake, Kasun Weerakoon, G.M.R.I. Godaliyadda, M.P.B. Ekanayake, and H.M.V.R. Herath; IEEE Journal of Geoscience and Remote Sensing, 2020.

2020

Validation of multispectral imaging for the detection of selected adulterants in turmeric samples; Wele Gedara Chaminda Bandara, Gode Withanage Kasun Prabhath, Dissanayake Walawwe Sahan Chinthana Bandara Dissanayake, Vijitha Rohana Herath, Gunawath Mudiyanselage Roshan Indika Godaliyadda, Marvyn Parakrama Bandara Ekanayake, Dhanushika Demini, and Terrence Madhujith; Journal of Food Engineering, 266 (2020)109700

2019

Mapping Ilmenite Deposit in Pulmudai, Sri Lanka using Hyperspectral Imaging Based Surface Mineral Mapping Method; E.M.M.B. Ekanayake, S.S.P. Vithana, E.M.H.E.B. Ekanayake, A.R.M.A.N. Rathnayake, A.M.R. Abeysekara, T.S.J. Oorloff, H.M.V.R. Herath, G.M.R.I. Godaliyadda, M.P.B. Ekanayake, A. Senarathne; Journal of The National Science Foundation Sri Lanka, 2019

2019

Adaptive Hierarchical Clustering for Hyperspectral Image Classification: Umbrella Clustering; S.S.P. Vithana, E.M.M.B. Ekanayake, E.M.H.E.B. Ekanayake, A.R.M.A.N. Rathnayake, G.C. Jayathilaka, H.M.V.R. Herath, G.M.R.I. Godaliyadda, M.P.B, Ekanayake; Journal of Spectral Imaging, Vol 8 Article ID a11 (2019)

2018

Comparison of Two Algorithms for Land Cover Mapping Based on Hyperspectral Imagery; Sajani Vithana, Ruwanthi Abeysekara, Shane Oorloff, Vijitha Herath, Roshan Godaliyadda, Parakrama Ekanayake, Anuththara Rupasinghe; ICTer Journal (11) 1, 2018

2018

An Eight-Octant bipolar junction transistor analog multiplier circuit and its applications, H. M. V. R. Herath, G. H. I. Wimalarathna; Ceylon Journal of Science (47) 2, 2018

2013

Effect of Nonlinear Phase noise on the Performance of M-ary PSK in Optical Fiber Links; N.Ekanayake, H.M.V.R. Herath; IEEE/OSA Journal of Lightwave Technology, Vol. 31 No. 3, pp 447-454, 2013

2008

Coherent Optical Communication: Towards Realtime Systems at 40 Gbit/s and Beyond; T. Pfau, S. Hoffmann, O. Adamczyk, R. Peveling, V. Herath, M. Porrmann, and R. Noé; Optics Express, Jan. 2008

International Conferences

2020

Impact of Receiver Orientation on Full-Duplex Relay Aided NOMA Underwater Optical Wireless Systems, Kapila W S Palitharathna, Himal A Suraweera, Gunawath Mudiyanselage Roshan Indika Godaliyadda, Vijitha R Herath, Zhiguo Ding, IEEE International Conference on Communication 2020, Dublin, Ireland ONS3.

2020

Transmittance Multispectral Imaging for Edible Oil Quality Assessment, H. Weerasooriya, H. Lakmal, Y. Ranasinghe, W. Bandara, V. Herath, R. Godaliyadda, P. Ekanayake, T. Madhujith, Optical Sensors and Sensing Congress 2020 JW5C.8. (HS)

2019

Hyperspectral Imaging Based Method to Identify Potential Limestone Deposit, Ranasinghe D.Y.L, Lakmal, H.M.S., Weerasooriya, H.M.H.K, Ekanayake, E.M.M.B., Godaliyadda, G.M.R.I., H.M.V.R. Herath, Ekanayake, M.P.B., 2019 IEEE International Conference on Industrial and Information Systems (ICIIS). Dec. 2019, Kandy, Sri Lanka. (HS).

2019

Feature Extraction Using Minor Scatter Directions of Data to Distinguish Between Classes with Minute Differences of a Hyperspectral Image, E. M. M. B. Ekanayake, W. G. C. Bandara, G. W. K. Prabhath, G. M. R. I. Godaliyadda, H. M. V. R. Herath, and M. P. B. Ekanayake, 2019 IEEE International Conference on Industrial and Information Systems (ICIIS). Dec. 2019, Kandy, Sri Lanka.(HS)

2019

Effectiveness of Methods Practiced to Clean Biological Growth on MV Porcelain Insulators – A Case Study, A.D. De Silva, J.R.S.S. Kumara, H.M.V.R. Herath, M.A.R.M. Fernando, A.D.S.N.P. Athukorala, 2019 IEEE International Conference on Industrial and Information Systems (ICIIS). Dec. 2019, Kandy, Sri Lanka.

2019

Effects of Biological Growth on MV Porcelain Insulators – A Case Study at Ampara, A.D. De Silva, J.R.S.S. Kumara, H.M.V.R. Herath, M.A.R.M. Fernando, A.D.S.N.P. Athukorala, Transactions of the Institution of Engineers Sri Lanka, 2019.

2019

Multispectral Imaging for Detection of Adulterants in Turmeric Powder; G.W.K. Prabhath, W.G.C. Bandara, D.W.S.C.B. Dissanayake, H.M.V. Herath, G.M.R. Godaliyadda, M.P.B. Ekanayake, D. Demini, T. Madhujith; OSA Optical Sensors and Sensing Congress, San Jose, CA, USA, 2019. (HS)

2019

Enhanced Hyperspectral Unmixing Via Non-Negative Matrix Factorization Incorporating End Member Independence; Mevan Ekanayake, Bhathiya Rathnayake, Hasantha Ekanayake, Anusha Rathnayake, Vijitha Herath, Roshan Godaliyadda, Parakrama Ekanayake; 2019 IEEE International Geoscience and Remote Sensing Symposium, Kyoto, Japan. (HS) Flagship conference.

2018

Relay-assisted optical wireless communications in turbid water; Kapila WS Palitharathna, Roshan I Godaliyadda, Vijitha R Herath, Himal A Suraweera; Proceedings of the Thirteenth ACM International Conference on Underwater Networks & Systems, 2018 (OC)

2018

A Multispectral Imaging System to Assess Meat Quality, W.G.C Bandara, K. Prabhath, D. W. S. C. B. Dissanayake, V.R. Herath, G.M.R.I. Godaliyadda, M.P.B. Ekanayake, S. Vithana, D. Demini and T. Madhujith ; IEEE R10 Humanitarian Conference 2018. (HS)

2018

A SEMI-SUPERVISED ALGORITHM TO MAP MAJOR VEGETATION ZONES USING SATELLITE HYPERSPECTRAL DATA, E.M.M.B. Ekanayake, E.M.H.E.B. Ekanayake, A.R.M.A.N. Rathnayake, S.S.P. Vithana, H.M.V.R. Herath, G.M.R.I. Godaliyadda, M.P.B. Ekanayake; 10th Workshop on Hyperspectral Imaging and Signal Processing 2018, Amsaterdam. (HS)

2014

R. R. L. L. Wijayaratne, P. J. Binduhewa, S. G. Abeyratne, J. B. Ekanayake, “Investigation the Feasibilityof Distribution System Voltage Regulation with a Three Winding Transformer”, IEEE sponsored, International Conference on Industrial and InformationSystems, 15-17 Dec., 2014, Gwalior India.

2017

Spectral-spatial hybrid mechanism for feature detection using spectral correlation, TSJ Oorloff, AMR Abeysekara, SSP Vithana, RAA Rupasinghe, HMVR Herath, GMRI Godaliyadda, MPB Ekanayake, ICIIS 2017. (HS)

2017

Hyperspectral imaging based land cover mapping using data obtained by the Hyperion sensor, SSP Vithana, AMR Abeysekara, TSJ Oorloff, RAA Rupasinghe, HMVR Herath, GMRI Godaliyadda, MPB Ekanayake; Seventeenth International Conference on Advances in ICT for Emerging Regions (ICTer), 2017. (HS) Received Best Paper Award

2017

Land Cover Classification and Sub Component Analysis using Hyperspectral Imagery, M.P.B. Ekanayake A.M.R. Abeysekara, T.S.J. Oorloff, S.S.P. Vithana, H.M.V.R. Herath. G.M.R.I. Godaliyadda; Annual Sessions of IESL 2017. (HS)

2014

Performance improvement of a 16-QAM Coherent Optical Transmission System, V.R. Herath; S. Perera, S.Perera, D. Priyankara; ICIIS 2014, Gwalior, India, Dec 2014

2013

Performance of QAM Signals in Optical Fiber Links in the Presence of Nonlinear Phase Noise; N.Ekanayake, H.M.V.R. Herath; ICIIS 2013, Kandy, Sri Lanka, Dec 2013 (OC)

2013

An Adaptive Modified Decision-Directed Algorithm for Electronic Polarization Control in Coherent QPSK Optical Transmission; G. Tharshini, A. Pathmanathan, T. Vaishanavy, M.P.B.Ekanayake, G.M.R.I. Godaliyadda, H.M.V.R. Herath; ICIIS 2013, Kandy, Sri Lanka, Dec 2013 (OC)

2012

A study of Possible Modifications in 16 QAM Modulation Scheme to Compensate the Nonlinear Phase Noise in Long-haul Optical Communication System; S.Tharranetharan, M.Saranraj, S.Sathyaram, and V.R.Herath; Transactions of the Institute of Engineers Sri Lanka, Oct. 2012 (OC)

2011

Optical transmission beyond 100 Gbps: techniques and challanges; Vijitha R. Herath, S.Arulprasanth; Transactions of the Institute of Engineers Sri Lanka, 2011 (OC)

2011

Performance Comparison of Optical Receivers Using Different Filtering Algorithms and Modulation Schemes; Arunprasanth Sakthivel, Herath, V.R.; ICIIS 2011, Kandy, Sri Lanka, Aug 2011 (OC)

2011

Review of Spectrum Sensing in Cognitive Radio; L.N.T. Perera, and V. R. Herath; ICIIS 2011, Kandy, Sri Lanka, Aug 2011 (WC)

2011

Simulation based analysis of 16-QAM constellations with five circular shells in long haul optical links; S. Tharranetharan, M. Saranaraj, S.Sathyaram and V.R.Herath ; Peradeniya University research sessions, December 2011 (OC)

2011

Performance Comparison of Nonlinear Phase Noise Tolerant Constellation Diagrams; S.Tharranetharan, M.Saranraj, S.Sathyaram and, V. R. Herath; ICIIS 2011, Kandy, Sri Lanka, Aug 2011 (OC)

2010

Noise suppression in optical coherent QPSK transmission systems using averaging filters, S. Arulprasanth, H.M.N.D. Palapathwala, U.M. Amerasekara, V.R. Herath; Peradeniya University Research Sessions 2010, 16th December 2010, Peradeniya (OC

2010

A Simple Mean Clock Skew Estimation Algorithm for Clock Distribution Networks in Presence of Random Process Variations and Nonuniform Substrate Temperature; Vijitha R. Herath, Reinhold Noé; ICIIS 2010, Mangalore, India, Aug 2010 (IC)

2009

9.5 Gbit/s 20 Channel 1:8 DEMUX for a Coherent Optical Receiver DSPU ASIC Input Interface; Vijitha R. Herath, Olaf Adamczyk, Ralf Peveling, Christian Wödehoff, Reinhold Noé; ICIIS 2009, Peradeniya, Sri Lanka, Dec 2009 (IC)

2009

Chipset for a Coherent Polarization-Multiplex QPSK receiver; V. Herath, R. Peveling, T. Pfau, S. Hoffmann, C. Wördehoff, M. Porrmann, O. Adamczyk, R. Noé; OFC 2009, San Diego, USA (IC/OC) Flagship conference

2009

Multiplier-Free Realtime Phase Tracking in Digital Synchronous QPSK Receiver for Coherent Optical Detection; S. Hoffmann, V. Herath, M. El-Darawy, T. Pfau, C. Wördehoff, R. Peveling, U. Rückert, R. Noé; ICIIS 2009, Peradeniya, Sri Lanka, Dec 2009

2011

C.M. Liyanagedera, U.C. Dissanayake, K.T.D.D.N. Jayapala, S.G. Abeyratne, K.R.M.N. Rathnayake “Simulation and Fabrication of a MaximumPower PointTracker Monitoring and Validating System”, IEEE sponsored, International Conference on Industrial and Information Systems, 16-19 Aug., 2011, Kandy, Sri-Lanka.

2009

Analysis of an ASIC-based Coherent Polarization-Multiplexed QPSK Receiver and Different Receiver Frontends; Mohamed El-Darawy, Vijitha Herath, Timo Pfau, Sebastian Hoffmann, Ralf Peveling, Olaf Adamczyk, Christian Wördehoff, Ulrich Rückert, Reinhold Noé; ITG workshop (photonic networks) 2009, Leipzig, Germany

2009

Towards Real-Time Implementation of Coherent Optical Communication; T. Pfau, R. Peveling, V. Herath, S. Hoffmann, C. Wördehoff, M. Porrmann, O. Adamczyk; OFC 2009, San Diego, USA (IC/OC) Flagship conference

2008

Realtime Digital Polarization and Carrier Recovery in a Polarization-Multiplexed Optical QPSK Transmission, R. Noé, S. Hoffmann, T. Pfau, O. Adamczyk, V. Herath, R. Peveling, M. Porrmann, in Proc. IEEE-LEOS Summer Topicals 2008, July 21-23, 2008, Acapulco, Mexico

2007

Realtime Optical Synchronous QPSK Transmission with DFB lasers; T. Pfau, O. Adamczyk, V. Herath, R. Peveling, S. Hoffmann, M. Porrmann and R. Noé; 2007 IEEE LEOS Summer Topicals

2007

Real-time Digital Carrier & Data Recovery for a Synchronous Optical Quadrature Phase Shift Keying Transmission System; R. Noé, T. Pfau, O. Adamczyk, R. Peveling, V. Herath, S. Hoffmann, M. Porrmann, S. Ibrahim, and S. Bhandare; 2007 IEEE MTT-S International Microwave Symposium Digest

2004

A Review on the Recent Developments in WDM Based Optical Access Network; P. Mookiah, and V. R. Herath; 2004 Annual Transactions of IESL

2002

Stabilizing Controller Design for Distributed Sensor Networks; V. R. Herath, K. Premarathne, M. Dogruel,and P.H.Bauer; 2002 IEEE Sensors Conference, Orlando, USA