Room ECED-1 : ECE-203
Office Phone 0495-2286703
Areas Of Interest Multirate Signal Processing, Speech Processing

Bachelor of Engineering 1975 College of Engineering, Trivandrum

Master of Engineering 1978 College of Engineering, Trivandrum

Ph.D 1989 Indian Institute of Technology, Madras

Post Doctoral Research 2001 Linkoping University, Sweden

Sl. No. Title of the Project Duration (Months&Year)Starting Ending

1 DFT Modulated Filer Bank transceives for Multi path Fading Channel 2007

2 Cosine Modulated Filter Bank Transceives 2007

3 Design of Signal Adapted Filter bank and it?s application in Echo Cancellation 2006

4 Theory, Design and Partial Implementation of Digital Tracking Receiver for portable telemetry ground station 2005

5 Efficient Implementation of Digital Filter Banks 2005

6 Audio Coding Using Non Uniform Filter Banks 2005

7 Arbitrary Length Cosine Modulated Filter Banks 2004

8 Design and Simulation of Two-Channel Hybrid Analog/Digital Multirate Filter Banks 2004

9 Finite Word -Length Effects In Digital Filter Banks 2003

10 Design & Simulation of Low sensitivity & Low Complexity M-Channel IIR/Fir Uniform Ban d Filter Banks 2002

11 Design and Implementation of Digital Filter Banks 2002

12 Design of Digital filter banks Jun-2001 Dec 2001

13 BAW devices for Signal Processing Jun-1999 Feb-2000

14 Bulk Acoustic wave devices for Signal Processing 2000

15 Development of an interface between operation system of TMN & A network Element 2000

16 Face recognition 2000

17 Estimation and prediction for tracking a virtually stationary target Jun-1999 Dec 1999

18 Microprocessor based automatic tracking of TV stations 1999

19 Automatic Speech recognition using DTW Techniques Jun-1998 Dec-1998

20 Low bit rate speech coding using line spectrum pair techniques Jun-1998 Dec-1998

21 DSP based PSK modulator Jun-1998 Dec-1998

22 Automatic Speech recognition using DTW and HMM Techniques Jun-1997 Dec-1997

23 Detection and estimation of transient signals Jun-1997 Dec-1997

24 Design and implementation of X.25 pads Jun-1996 Dec-1996

25 Single line dual elephone system Jun-1996 Dec-1996

26 An optimization approach to video quality improvement Jun-1996 Dec-1996

27 Software implementation of Viterbi decoder for satellite communication links Jun-1995 Dec-1995

28 Design and development of an embedded real time software for an air defense system Jun-1995 Dec-1995

Dean (Planning&Development) 06-06-2006- 15.10.2007 NIT Calicut

Professor & Head 1-6-2003 to 30-05-2006 NIT Calicut

Professor 11-3-2002 to continuing NIT Calicut

Assistant Professor 1-6-1989 to 11.3.2002 NIT Calicut

Lecturer 18-12-1978 to 1-6-1989 NIT Calicut

Lecturer(Ad-hoc) 18-8-1978 to 17-12-1978 NIT Calicut

1. Research Scholar (1984-1988) in the Department of Electrical Engineering at Indian Institute of Technology (IIT), Madras, India, in the area of Signal Processing.

2. Post Doctoral Research (2000-2001) in the Department of Electronics Systems, Linkoping University, Sweden, in the area of Digital filters and filter banks

Guided two projects every year in the following fields of Electronics and Communication Engineering:

1. Electronic Circuits

2. Digital systems

3. Digital System Design

4. Communication Engineering

5. Television Engineering

6. Radar

7. Digital Signal Processing

8. Speech Processing

9. Image Processing

10. Digital filter bank design

11. Acoustic Signal Processing

12. Microprocessors

13. Digital filter banks



Name of the project

R & D/ Modernisation/ Thrust Area/

Starting Month & Year

Ending Month & Year

Amount involved in Lakhs


Modernization of Microwave and Communication Engg Labs

Modernisation, Funded by Ministry of Human Resources Development (MHRD)



Rs.10 Lakhs


Modernization of Microwave and Communication Engg Labs

Modernisation (MHRD)



Rs.5 Lakhs


R & D Project on Implementation of Digital Filter Banks

R & D (MHRD)



Rs.6 Lakhs


Echo Cancellation using Adapted Filter Banks

NIT Calicut (FRP Project)



0.5 Lakhs


Design and Development of low bit rate real time applications of Multi rate systems

R & D (MHRD)



Rs.12 Lakhs


Special Manpower Development Programme for VLSI Design & Related Software (SMDP II)

Government of India, Ministry of Information Technology, New Delhi



100 Lakhs


Digital Signal Processing

Multirate Signal Processing

 Ph.D. Produced - 11 Nos.

PhD  Ongoing-   5 Nos
Ph. D. GUIDANCE4(Completed)

  1. Abdul Hameed K.A., 2002- 2006, "Linear Phase Cosine Modulated Filter Banks",Degree Awarded 2007
  2. Sheeba V.S., 2003-2007, "Optimality and Design of Signal Adapted Filter Banks", Degree Awarded 2007
  3. Sumesh E.P. 2002-2008, "Multi-wavelets and Their Applications in Partial Differential Equations", Degree Awarded 2009
  4. Indiradevi, 2005-2008, "Automatic detection and prediction of epileptic spikes in the EEG", Degree Awarded 2009
  5. Manoj K, 2006-2009, “Design of Multiplier-less Non-Uniform Filter Bank Trans-multiplexer”, Degree awarded in October 2010
  6. BaijuBai, 2008-2011, "Compressive sampling Based Reconstruction of Medical Images", Degree awarded on October 2012
  7. Manju Manuel, 2008-2012, "Design of FRM based 2D filters in the Canonic Signed digit Space", Degree awarded in December 2013
  8. James. T. G, 2010-2014  "Continuously Variable Bandwidth Sharp FIR Filters with Low Complexity", Degree awarded in January 2015
  9. Bindiya. T. S, 2009-2014, "Design of Multiplierless uniform and non-uniform Filter banksusing Meta-Heuristic Algorithms", Degree awarded in January 2015
  10. Shaeen. K, 2011-2015, "Low complexity uniform and non-uniform Cosine Modulated Filter Banks", Degree awarded in December 2015
  11. Nisha Haridas, 2012-2016, "Design and implementation of Farrow Structure based low complexity Reconfigurable Digital Filters", Provisional degree awarded in December 2016

Ph.D. GUIDANCE (In progress)  -4Nos

1.     V Sakthivel, 2013           :Perfect Reconstruction filter banks

2.     Bindima T.,2014             : Design of two dimensional filters

3.     Amir A.,2015                 : Multirate Signal Processing

4.     I Raghu,2015                : Spectrum sensing in Cognitive Radio

No. of External Ph.D. theses evaluated : 20 Nos

a. Undergraduate Level ( B. Tech )

1. Basic Electronics

2. Solid State Devices

3. Digital Electronics

4. Electronic Circuits

5. Communication Engineering-1

6. Communication Engineering-2

7. Communication Engineering-3

8. Microwave Engineering

9. Integrated Circuit Technology

10. Computer Organization and Architecture

11. Microprocessors

12. Television Engineering

13. Radar

14. Radio Communication

15. Line Communication

16. Electronic Devices and Circuits

17. Digital Signal Processing

18. Speech processing

19. Advanced Digital Signal Processing

20. Digital System Design

21. Digital Filters

22. Modern Communication Systems

23. Active Network Synthesis

24. Multirate systems and Filter Banks

25. Digital Signal Processing

26. Speech Signal Processing

b. Post Graduate Level ( M. Tech )

1. Digital System Design

2. Digital Signal Processing

3. Speech Analysis and Synthesis

4.. Multirate Signal processing

5. Multidimentional Singal Processing


Multirate Signal Processing(PG)

Speech Processing(UG)

Multidimensional Signal Processing(PG)

Bachelor of Engineering 1975 College of Engineering, Trivandrum

Master of Engineering 1978 College of Engineering, Trivandrum

Ph.D 1989 Indian Institute of Technology, Madras

Post Doctoral Research 2001 Linkoping University, Sweden

Co-ordinator, Project on 'Special Manpower Development Programme' in VLSI (Rs 1 crore), funded
by Ministry of Communication and Information Technology(2005-2013),
Coordinator, ISTE (Indian Society for Technical Education) Summer School on Digital
Communication and the ISDN, May 1991

Asst-Professor-in-charge, Intercom Facilities, 1991-2000

Principal Invesigator, MHRD Project on Modernisation of Communication Engg Labs,(Rs 10 Lakhs) ,funded
by Ministry of Human Resources Development (MHRD),1991-1993

Convenor/Secretary of FUTECH 97, National Student Conference in REC
Calicut in 1997

Programme committee leader for 10th Kerala science Congress in REC, Calicut

Coordinator, Campus Communication Network -1995-2000 (Established cable network in the campus)

Convenor, Programme committee , 22nd National Systems Conference (NSC98)
on Technology, Education and Environment for Sustainable growth, at REC

Principal investigator, Project on Modernisation of Microwave and Communication Engg Labs,
(Rs 5 lakhs) funded by Ministry of Human Resources Development

Liaison Officer for NITC with IIM Kozhikode, 2001-2002

Coordinator, AICTE/ISTE Short term course on Advances in Compression Techniques, December 2002

Coordinator, TATHVA National Level Technical Festival , March 2003

Principal Investigator, Project of R&D on Implementation of digital filter banks ,(Rs 6 Lakhs), funded
by Ministry of Human Resources Development (MHRD),2003-2005

Warden, Ladies Hostel 1979-1980, 2001-2003

Chairman /Co-Chairman of National /International Conferences.

1 Chaired the session on "Filters&Filter Banks" on June 10, 2004 in IEEE Nordic Signal Processing Symposium, (NORSIG 2004)Espoo, Finland .

2 Chaired the session on Signal Processing in the International conference on Computational Intelligence, Robotics and Autonomous Systems, Singapore, November 28-30, 2001

3 3 Chaired the session on "Audio and Speech Processing" on 14-5-2000 in IEEE Nordic Signal Processing Symposium, (NORSIG 2000) Kolmorden, Sweden, May 13-15, 2000

4 Chaired the session on "Audio and Speech Processing" on 15-5-2000 in IEEE Nordic Signal Processing Symposium, (NORSIG 2000) Kolmorden, Sweden, May 13-15, 2000

5 Chaired the session on "Signal Processing, Image Processing and Networks" on 17-7-1999 in the International Conference on Robotics, Vision and Parallel Processing for Automation, Ipoh, Malaysia

Referee for National/International Conferences

1. Referee for ECCTD'01European Conference on Circuit Theory and Design 28.08.2001 - 31.08.2001 Espoo, Finland

2. Referee for IEEE Nordic Signal Processing Symposium, (NORSIG 2000) Kolmorden, Sweden, June 2000

3. Referee for IEEE Nordic Signal Processing Symposium, (NORSIG 2004) at Espoo, Finland, June 2004.

4. Reviewer Journal of Elsevier Signal Processing 2005-2006

Participation in International conferences

1. Chaired the session on "Filters & Filter Banks" on 2006 IEEE International Symposium on Circuits and Systems, to be held in Kos, Greece, May 21-24, 2006.

2. Presented a paper and Chaired a session on Filters & Filter banks in 6th Nordic Signal Processing Symposium, NORSIG 2004 Meripuisto, Espoo, Finland June 9 - 11, 2004

3. Presented a paper in the session on Signal Processing in the 6th International Conference on High performance Computing in Asia-Pacific region, Bangalore, India

4. Presented two papers and chaired the session on Signal Processing in the International conference on Computational Intelligence, Robotics and Autonomous Systems, Singapore, November 28-30, 2001

5. Presented two papers in the 9th International Confe rence on Advanced Computing and Communications Bhubaneshwar, India, December 2001

6. Presented a paper in ICECS 2000, IEEE International Conference on Electronics, Circuits and Systems, Beirut, Lebanon, Dec 2001

7. Attended EUSIPCO 2000, X European Signal Processing Conference, Tampere, Finland, Sept 2000

8. Presented a paper and chaired a session in NORSIG 2000, IEEE Nordic Signal Processing Symposium, Kolmorden, Sweden, June 2000

9. Attended ISCAS 2000, IEEE International Symposium on Circuits and Systems in Geneva, Switzerland, May 2000

10. Presented a paper in ROVPIA '99, International Conference on Robotics, Vision and Parallel Processing for Automation, Ipoh, Malaysia, July 1999

11. Fellow in the 12th International Conference on VLSI Design, Goa, India, January 7-10, 1999

No. of Publications (National / International) - 63 Journals, 45 Conferences

Journals-63 Nos



  1. Nisha Haridas, Elizabeth Elias, Reconfigurable Farrow Structure-Based FRM Filters for Wireless Communication Systems, Circuits, systems and signal processing, Springer.January 2017, 36(1), pp 315–338.



  1. Nisha Haridas, Elizabeth Elias,  "Low complexity technique to get arbitrary variation in the bandwidth of a digital FIR filter", IET Signal Processing (accepted), doi:10.1049/iet-spr.2016.0055.
  2. T Bindima, Elizabeth Elias, "A novel design and implementation technique for low complexity variable digital filters using multi-objective artificial bee colony optimization and a minimal spanning tree approach ",  Engineering Applications of Artificial Intelligence, Elsevier, Published online, doi:10.1016/j.engappai.2016.12.011.
  3. Nisha Haridas, Elizabeth Elias,  "Design of reconfigurable low-complexity digital hearing aid using Farrow structure based variable bandwidth filters", Journal of Applied Research and Technology,  Elsevier, 14(2), April 2016, Pages 154–165.
  4. Nisha Haridas, Elizabeth Elias, "Efficient variable bandwidth filters for digital hearing aid using Farrow structure", Journal of Advanced Research, Elsevier7(2), March 2016, vol.7, No 2, Pages 255–262.
  5. Thayyil Bindima, Elizabeth Elias, "Design of efficient circularly symmetric two-dimensional variable digital FIR filters, Journal of Advanced Research, Elsevier, 7(3), May 2016, Pages 336–347
  6. V. Sakthivel and Elizabeth Elias, Design of Sharp MDFT Filter Banks with perfect reconstruction in the SPT space. Far East Journal of Electronics & Communications 16(2): 395-414, 2016.
  7. Aravind Illa, Nisha Haridas, Elizabeth Elias, Design of Multiplier-less FIR filters with Simultaneously Variable Bandwidth and Fractional Delay, Engineering Science and Technology, an International Journal, Elsevier 19(3), September 2016, Pages 1160–1165.
  8. Bindiya, T.S. and Elias, E., 2016. Meta-heuristic evolutionary algorithms for the design of optimal multiplier-less recombination filter banks., International journal of Information Sciences, Elsevier, 2016, 339, pp.31-52.
  9. Bindiya, T.S. and Elias, E., 2016. Design of FRM-based MDFT filter banks in the canonic signed digit space using modified meta-heuristic algorithms, International Journal of Signal and Imaging Systems Engineering,  9(1), pp.20-37
  10. 2015
  1. Manuel, Manju, Remya Krishnan, and Elizabeth Elias. "Design of circularly symmetric 2-D sharp wideband filters using FRM and multiplierless transformation." International Journal of Signal and Imaging Systems Engineering 8, no. 3 (2015): 177-186.
  2. Shaeen K and Elizabeth Elias, “Prototype Filter Design Approaches for Near   Perfect Reconstruction Cosine Modulated Filter banks – A Review”, Springer: Journal of Signal Processing Systems, Vol. 81, No.2, pp. 183 – 195, 2015.
  3. Bindiya T .S. and Elizabeth Elias, “Design of Totally Multiplier-less Sharp Transition Width Tree Structured Filter Banks for Non-uniform Discrete Multitone System”, AEUE - Elsevier International Journal of Electronics and Communications, 69(3), 655-665, 2015.
  4. Shaeen K and Elizabeth Elias, “Efficient design of non-uniform cosine modulated filter banks for digital hearing aids”, Elsevier: AEU - International Journal of Electronics and Communications, Vol. 69, No.9, pp. 1314 – 1320, 2015.
  5. V. Sakthivel and Elizabeth Elias , “Design of low complexity sharp MDFT Filter Banks with perfect reconstruction using Hybrid Harmony-Gravitational Search Algorithm”, Elsevier: Engineering Science and Technology, an International Journal, DOI : 10.1016/j.jestch.2015.03.012
  6. Shaeen K and Elizabeth Elias, “Design of Multiplier-less Sharp Non-uniform Cosine Modulated Filter Banks for Efficient Channelizers in Software Defined Radio”, Elsevier: Engineering Science and Technology, an international journal, DOI:10.1016/j.jestch.2015.06.003, 2015.
  7. Bindiya T .S. and Elizabeth Elias, "Design of multiplier-less sharp transition width non-uniform filter banks using gravitational search algorithm",  International Journal of Electronics, Taylor and Francis,Volume 102, Issue1, 2015




  1. James T George and Elizabeth Elias   A 16Band Reconfigurable Hearing Aid using Variable Bandwidth Filters, Global Journal of Research in Engineering  Volume 14-F Issue 1 Version 1.0.
  2. Bindiya T .S.  and Elizabeth Elias  Article: Design of Multiplierless Sharp Transition Width MDFT Filter Banks using Modified Metaheuristic Algorithms. International Journal of Computer Applications 88(2):1 14, February 2014. Published by Foundation of Computer Science, New York, USA.
  3. Aravind Illa and Elizabeth Elias. Article: FIR Approximation of GTD Filter Banks and their Multiresolution Optimality. International Journal of Computer Applications 87(10):1-5, February 2014. Published by Foundation of Computer Science, New York, USA.
  4. V Sakthivel, Rathlavath Chandru and Elizabeth Elias. Article: Design of MultiplierLess MDFT Filter Banks with Perfect Reconstruction using ABC Algorithm. International Journal of Computer Applications 96(1):13-22, June 2014. Published by Foundation of Computer Science, New York, USA.
  5. Nisha Haridas, Aravind Illa and Elizabeth Elias. Article: Multiplierless Farrow Structure based Linear Phase Low Pass Interpolation Filter. International Journal of Computer Applications 95(14):1-6, June 2014. Published by Foundation of Computer Science, New York, USA.        


  1. Shaeen K and Elizabeth Elias, Design of Multiplierless cosine modulated filter banks with sharp transition using evolutionary algorithms, International Journal of Computer Applications,  doi>10.5120/11748-7025,  Volume-68- No.25, April-2013
  2. Bindiya T .S.  and Elizabeth Elias Metaheuristic algorithms for the design of multiplierless nonuniform filter banks based on frequency response masking, SpringerVerlag Journal on Soft Computing Methodologies and Application, DOI 10.1007/s00500-013-1158-8, October 2013 
  3. James T George and Elizabeth Elias, Reconfigurable channel filtering and digital down conversion in optimal CSD space for software defined radio,  Elsevier International Journal of Electronics and Communication,, October 2013. 
  4. Bindiya T .S.  and Elizabeth Elias Modified metaheuristic algorithms for the optimal design of multiplier-less non-uniform channel filters.Springer Journal of  Circuits, Systems, and Signal Processing, March 2014, Volume 33, Issue 3, pp.815-837, doi:10.1007/s00034-013-9662-8. 
  5. James T George and Elizabeth Elias Article: Design of multiplierless continuously variable bandwidth sharp fir filters using modified gravitational search algorithm. International Journal of Computer Applications, 62(12):47–57, January 2013. Published by Foundation of Computer Science, New York, USA.    


  1. James T George and Elizabeth Elias, Continuously variable bandwidth sharp FIR filters with low complexity, Journal of Signal and information Processing, doi:10.4236/jsip.2012.33040, August 2012,3,308-315,
  2. Byjubai. T. P and Elizabeth Elias  "Image Quality assessment in Medical imaging based on Compressed Sensing" International Journal of Medical Engineering and Informatics, InderScience Publishers, Vol. 4, No. 3, 2012, pp 262 - 273
  3. Byjubai. T. P and Elizabeth Elias , "Sparse Regulation in Digital Medical Imaging" International Research Journal of Signal Processing - IRJSP, Vol. 03, Issue. 01, January - April 2012
  4. Manju Manuel, Remya Krishnan and Elizabeth Elias; "Design of Multiplierless 2D sharp wideband filter using FRM and GSA"; Global Journal of Research in Engineering. Electrical and Electronics Engineering; Online ISSN: 2249.4596, Print ISSN: 0975-5861, April 2012
  5. Bindiya T .S, V. Sathishkumar and Elizabeth Elias; "Design of Low power and Low Complexity Multiplierless Reconfigurable Nonuniform Channel filter using Genetic Algorithm".  Global Journal of Research in Engineering, Vol. 12, Issue. 5, April, 2012
  6. Manju Manuel and Elizabeth Elias,  "Design of 2D multiplierless Circularly Symmetric FIR filter using Harmony Search Algorithm and Frequency Transformation"; Journal of Signal and Information Processing (JSIP), Scientific Research , an academic publisher, Vol. 3, Issue. 3, Version 1.0, April 2012.
  7. Manju Manuel and Elizabeth Elias, "A Novel Approach for the Design of 2D Sharp Circularly Symmetric FIR Filters - (Global Journal of Researches in Engineering, Vol. 12, Issue 6, Version 1.0, May 2012)
  8. Manju Manuel and Elizabeth Elias, Design of frequency response masking FIR filter in the Canonic Signed Digit space using modified Artificial Bee Colony algorithm,Engineering Applications of Artificial Intelligence, Available online 6 March 2012 
  9. Bindiya T .S.  and Elizabeth Elias Article: Design of multiplierless reconfigurable nonuniform channel filters using meta-heuristic algorithms. International Journal of Computer Applications, 59(11):1–11, December 2012. Published by Foundation of Computer Science, New York, USA.    


  1. Manoj V.J. and Elizabeth Elias, “Artificial Bee Colony Algorithm for the design of multiplier-less non uniform filter bank Tran multiplexer”,  International Journal of Information Sciences,Elsevier, Signal Processing 89 (2009)2274-2285, 2011
  2. Byjubai. T. P and Elizabeth Elias, “Image quality assessment in Medical imaging based on Compressed Sensing”, International Journal of Medical Engineering and Informatics, Inderscience, Vol. 4, No. 3, 2012. PP. 262 - 273                           


  1. Sheeba V S and Elizabeth Elias, “Adaptive loading with principal component filter bank in MIMO multi carrier modulation systems”, International journal of image and signal processing, Vol. 2, Nos. 1/2, 2009, pp81-87.
  2. E.P. Sumesh and Elizabeth Elias,  “Optimization of Finite Difference Method with Multiwavelet Bases”,  (Eds.): IC3 2009, CCIS 40, pp. 37–48, 2009, Springer-Verlag Berlin Heidelberg 2009
  3. Manoj V. J. and Elizabeth Elias, “Design of Multiplierless Nonuniform Filter Bank Tran multiplexer Using Genetic Algorithm”, Elsevier Signal processing Journal Vol.89, 2009, pp.2741-2285.
  4. Manoj V. J. and Elizabeth Elias, “Design of Nonuniform Filter Bank with canonic signed digit filter coefficients”, IET Signal Processing journal, Vol. 3, Iss. 3, 2009, pp. 211-220.
  5. Manoj V. J. and Elizabeth Elias, “On the Design of Low Complexity Cosine Modulated Filter Bank Tran multiplexer”, International journal on information and communication technologies, Vol., Iss.1, 2009, pp. 83-87.
  6. K.P. Indiradevi, Elizabeth Elias and P.S. Sathidevi. “Complexity analysis of electroencephalogram records of epileptic patients using Hurst exponent”, International Journal of Medical Engineering and Informatics, Vol.1, No.3. 2009, pp.368-380.                                                                                                                                           


  1. K.P. Indiradevi, Elizabeth Elias and P.S. Sathidevi. ” Automatic localisation of epileptic foci in long term continuous EEG, International Journal of Medical Engineering and Informatics Vol 1.,No.1.2008,pp.134-154.
  2. K.P. Indiradevi, Elizabeth Elias, P. S. Sathidevi, S. Dinesh Nayak, K. Radhakrishnan “A multilevel wavelet approach for automatic detection of epileptic spikes in the electroencephalogram”, Journal of Elsevier Computers in Biology and Medicine, pp. 805  -816, 2008
  3. Sheeba V S and Elizabeth Elias, “Twodimensional, twochannel signaladapted filter banks? The Institution of Engineering and Technology”, IET Comput. Digit. Tech., 2008, Vol. 2, No. 4, pp. 285-294, 2008
  4. K.P. Indiradevi, Elizabeth Elias and P.S. Sathidevi. “Automatic localisation of epileptic foci in long-term continuous EEG” Int. J. Medical Engineering and Informatics, Vol. 1, No. 1, pp. 134-154, 2008                            


  1. E.P. Sumesh and Elizabeth Elias,  “Transition Matrix Computation and Reduction of Boundary Error Using Smooth Multi wavelet Bases”, Journal of Wavelet Theory and Applications (JWTA) Volume 1 Number 1, pp. 125-140, May 2007
  2. Sheeba V S and Elizabeth Elias, “TwoDimensional FIR Signal Adapted Filter Banks: Optimality and Design”, Journal of Elsevier Signal Processing 87 pp 2381? 2391,2007.
  3. Sheeba V S and Elizabeth Elias,“Different Approaches for the Design of IFIR compaction filter”, International Journal of Signal Processing, vole 4,no.1, pp 17-23, Jan 2007                                                                          


  1. Sheeba V S and Elizabeth Elias,, “Design of TwoDimensional Signal Adapted Filter Banks for Application in Image Processing”, WSEAS Transactions on Signal Processing Issue 9, Volume 2, , pp.1281-1286, September 2006
  2. Sheeba V S, Elizabeth Elias and Anand R, “FIR Principal component Filter Banks in Echo Cancellation” CSI Journal, Young Horizon-Computing and Informatics, vol 1, no 1, pp. 28-31, November 2006
  3. K.M. Abdul Hameed and Elizabeth Elias, “MChannel Cosine Modulated Filter Banks with Linear Phase Analysis and Synthesis Filters”. Journal of Elsevier Signal Processing-86, pp 3842-3848
  4. K.M. Abdul Hameed and Elizabeth Elias, “On Linear Phase Mchannel cosine modulated Filter Banks,” WSEAS Transaction on Signal processing, Issue 4, Volume 2, pp 484-489, April 2006.  


  1. Elizabeth Elias, P. Lowenburg, H. Johanson, Lars Wanhammar. "Tree-structured IIR/FIR uniform-band and octave band filter banks with very lowcomplexity analysis or synthesis filters", Journal of Elsevier Signal Processing 83 pp 1997-2009, 2003                                                                                                                            


  1. Elizabeth Elias, Ashok Jhunjhunwala. "New orientations for bulk acoustic wave devices,” IEEE Trans. On Ultrasonics Ferroelectrics and Frequency Control, Vol. 37, No. 3,  May 1990, pp. 230 – 233
  2. Elizabeth Elias, Ashok Jhunjhunwala. "Theoretical analysis of planar bulk acoustic wave response,” IEEE Trans. On Ultrasonics Ferroelectrics and Frequency Control, Vol. 37, No. 1, Jan. 1990, pp. 2 - 13    


  1. Varun Jeoti, Elizabeth Elias, Ashok Jhunjhunwala. "Techniques for the search of optimum planar bulk acoustic wave devices, September ", JIETE. Vol. 35, no. 5, Oct. 1989, pp.  298 - 304
  2. Elizabeth Elias, Ashok Jhunjhunwala. "Analysis of planar bulk acoustic wave devices", Electronics Letters, IEE Vol. 24, No. 4, Feb. 1988, pp. 240 -242

Conference - 45 Nos.

  1. Sakthivel, V. and Elias, E., 2016, November. Design of non-uniform modified DFT filter banks. In Region 10 Conference (TENCON), 2016 IEEE (pp. 1419-1424). IEEE.

  2. Raghu, I., Chowdary, S.S. and Elias, E., 2016, November. Efficient spectrum sensing for Cognitive Radio using Cosine Modulated Filter Banks. In Region 10 Conference (TENCON), 2016 IEEE (pp. 2086-2089). IEEE.

  3. Amir, A., Inani, R. Bindiya T.s, and Elias, E., 2016, November. Reconfigurable low complexity hearing aid system using adjustable filter bank. In Region 10 Conference (TENCON), 2016 IEEE (pp. 2684-2688). IEEE.

  4. Bindima, T., Manuel, M. and Elias, E., 2016, November. An efficient transformation for two dimensional circularly symmetric wideband FIR filters. In Region 10 Conference (TENCON), 2016 IEEE (pp. 2838-2841). IEEE.

  5. Elizabeth Elias and Shaeen K, "Modified ABC algorithm for the optimal design of multiplierless cosine modulated Filter banks", International Conference on Advanced Engineering Optimization through Intelligent Techniques (AEOTIT), SVNIT, Surat July1-3, 2013 pp. 22-27.
  6. Elizabeth Elias,  Kaka Radhakrishne, Nisha Haridas and Bindiya T. S., "Cuckoo Optimization Algorithm for the design of a sharp transition width Modified DFT filter bank", International Conference on Advanced Engineering Optimization through Intelligent Techniques (AEOTIT)
    SVNIT, Surat July1-3, 2013 pp. 56-60.
  7. Elizabeth Elias, Byjubai. T. P “Comparative analysis of Compressive sensing based reconstruction in Medical Imaging”, International Conference on Information, Signal and Communication (ICISC 2011), Gujrat, India, February 2011.
  8. Elizabeth Elias, Manju Manuel “Design of Multiplier-less FRM FIR Filter Using Artificial Bee Colony Algorithm”, 20th European Conference on Circuit Theory and Design (ECCTD), Linkoping, Sweden, August 2011
  9. Elizabeth Elias, Renjitha, Manoj V. J. , “Design of low complexity Quadrature Mirror Filter bank using Simulated Annealing”, Third international conference on information processing, August 2009
  10. Elizabeth Elias, Manoj V. J. “On the Design of Low Complexity Cosine Modulated Filter Bank Trans-multiplexer “, Proc. International Conference on VLSI and Communication, April 2009.
  11. Elizabeth Elias, Sumesh E.P, “Optimal Finite Difference Method with Multiwavele”, Proc. International Conference on contemporary computing, Aug. 2009.
  12. Elizabeth Elias, Manoj V.J, “Design of Cosine Modulated Filter Bank Trans-multiplexer for Unknown Channels Using Genetic Algorithm”, Proce. IEEE-International Conference TENCON -2008, Hyderabad, November 18-21, 2008
  13. Elizabeth Elias, Sumesh E.P., “Multiwavelet Optimized Finite Difference Method to Solve Non Linear Schrodinger Equation in Optical Fibers”, Proce. IEEE-International Conference TENCON -2008, Hyderabad, November 18-21, 2008.
  14. Elizabeth Elias, Vinitha George, Sheeba V.S., “Cosine Modulated Filter Bank Transceiver, Proceedings of the National Seminar on Information, Communication & Intelligent Systems, Avenue Centre, Panampilly Nagar, Cochin, February, 2008
  15. Elizabeth Elias,K.P. Indiradevi, P.S. Sathidevi, “Automatic detection of Epileptic Spikes in the Long Term Electroencephalogram using Wavelet Transform”, Int. conference on Computational Intelligence and Multimedia Applications (ICCIMA ?07), Tamilnadu.-IEEE, pp no. 552 -556, December, 2007,
  16. Elizabeth Elias Sheeba V S, ”Design of Signal-Adapted Nonuniform Filter Banks using Tree Structure “ IEEE International Symposium on Circuits and systems ISCAS-2006 -Kos ,Greece, pp 887-90, 21-24 May-2006.
  17. Elizabeth Elias Sheeba V S, , “Design of Two-Dimensional Signal adapted filter bank from One Dimensional filters” Proceedings of the 6th WSEAS International Conference on Simulation, Modeling and Optimization, Lisbon, Portugal, September 22- 24, pp118-123, 2006
  18. Elizabeth Elias Sheeba V S, “Two-dimensional two channel FIR signal adapted filter banks”, Proceedings of the 24th IEEE Norchip Conference Linkoping, Sweden, November 2006,
  19. Elizabeth Elias, Sheeba V S, “Two-Dimensional FIR Signal Adapted Filter Banks”,13th IEEE International Conference on Electronics, Circuits and Systems ICECS 2006 6 ,Nice , France, December, 200
  20. Elizabeth Elias, K.M. Abdul Hameed,” Linear Phase Orthogonal Cosine Modulated N-Band Wavelets for Image”, NORCHIP, Linkoping, SWEDEN,209-212, November 2006
  21. Elizabeth Elias & K.M. Abdul Hameed, “Regular linear phase modulated lapped transforms for image coding,” IEEE International Conference on Image Processing (ICIP2006), USA, October 2006.
  22. Elizabeth Elias & K.M. Abdul Hameed, “Design of regularity constrained linear phase modulated lapped transforms,” Proceedings of IEEE Nordic Signal Processing Symposium (NORSIG), Iceland, pp. 174-177, June 2006,
  23. Elizabeth Elias & K.M. Abdul Hameed,, “M-Channel Linear Phase Cosine Modulated Filter Banks with Perfect Reconstruction.,” In proceedings of WSEAS conference on Multimedia Systems and Signal Processing (MUSP), China, pp 157-16,. April 2006.
  24. Elizabeth Elias & K.M. Abdul Hameed, “Extended lapped transforms with symmetric basis functions and perfect reconstruction,” In proceedings of IEEE International Conference on Electronics, Circuits and Systems (ICECS), Tunisia, Dec 2005.
  25. Elizabeth Elias & K.M. Abdul Hameed, “Modulated lapped transforms with symmetric basis functions, in proceedings of International Conference on Advanced Computing and Communications (ADCOM), India, Dec 2005.
  26. Elizabeth Elias & K.M. Abdul Hameed,, “Modulated M-band Filter banks with linear phase sub-band filters,” In Proceedings of Nordic Signal Processing Symposium (NORSIG), Norway, pp.169-172, September 2005
  27. Elizabeth Elias , Abdul Hameed & Tigi K Thomas, , “General Formulation for Arbitrary Length Cosine Modulated Filter Banks,” In proceedings of Nordic Signal Processing Symposium-(NORSIG), Finland,, pp. 81-84, June 2004
  28. Elizabeth Elias. "Design of Low complexity Filter Banks", Presented a paper in the session on Signal Processing in the 6th International Conference on High performance computing in Asia-Pacific region, Bangalore, India, 2003.
  29. Elizabeth Elias. "Low-sensitivity realizations of digital Filters, Dec. 2002", International Conference on Sonar, Sensors and Systems, ICONS2002, Cochin, India. Dec, 2002
  30. Elizabeth Elias. "Low sensitivity M-Channel Tree-structured IIR/FIR Uniform band Filter banks , March 2002", National Seminar on Emerging Convergent Technologies and Systems, SECTAS-2002, Agra, 2002.
  31. Elizabeth Elias. "Design and Analysis of M-Channel Tree Structured IIR/FIR Filter banks , Jan. 2002", National Conference on Industrial Automation and Intelligent systems, CEDTI, Calicut, 2002.
  32. Elizabeth Elias. "Optimization of M-Channel Tree Structured IIR/FIR Filter banks, Dec. 2001", 25th National systems conference (NSC 2001) PSG College of Technology, Coimbatore
  33. Elizabeth Elias. "Finite word-length effects on Tree Structured IIR/ FIR Octave Band Filter Banks”, 9th International Conference on Advanced Computing and Communications Bhubaneshwar, India, December 2001
  34. Elizabeth Elias. "Optimization of Tree Structured IIR/FIR Uniform Band Filter Banks, ", 9th International Conference on Advanced Computing and Communications December, 2001
  35. Elizabeth Elias. "Optimization of Tree Structured IIR/FIR Octave Band Filter Banks, ", International conference on Computational Intelligence, Robotics and Autonomous Systems, CIRAS2001, Singapore, November 2001
  36. Elizabeth Elias. "Finite wordlength effects on Tree Structured IIR/FIR Uniform Band Filter Banks, ", International conference on Computational Intelligence, Robotics and Autonomous Systems, CIRAS2001, Singapore , November 2001
  37. Elizabeth Elias, P. Lowenburg, H. Johanson., Lars Wanhammar, "Tree Structured IIR/FIR Octave Band Filter Banks with Low-Complexity analysis Filters, ", IEEE International Symposium on Circuits and Systems (ISCAS 2001) Sydney, Australia,. May 2001
  38. Elizabeth Elias, P. Lowenburg, H. Johanson., Lars Wanhammar, "Two-channel IIR/FIR Filter Banks with Low-Complexity analysis or synthesis Filters: Finite Wordlength Effects, August 2001.
  39. Elizabeth Elias, P. Lowenburg, H. Johanson., Lars Wanhammar, "Design of M-channel Tree Structured Filter Banks with Very Low-Complexity analysis Filters, ", 7th International Conference on Electronics Circuits and Systems, (ICECS 2000), Beirut, Lebanon, December 2000
  40. Elizabeth Elias, P. Lowenburg, H. Johanson., Lars Wanhammar, "M-Channel Tree Structured IIR/FIR Filter Banks with Low Complexity analysis Filters, ", IEEE Nordic Signal Processing Symposium, (NORSIG 2000) Kolmorden, Sweden, June 2000 
  41. Elizabeth Elias. "Search for Optimum Bulk acoustic wave devices, ", National Seminar on Applied Systems Engineering and Soft Computing (SASESC-2000), Agra, India,. March 2000
  42. Elizabeth Elias. "New Bulk acoustic wave devices for Signal Processing, ", National Seminar on Applied Systems Engineering and Soft Computing (SASESC-2000), Agra, India., March 2000.
  43. Elizabeth Elias. "Bulk acoustic wave devices for Signal Processing , ", International Conference on Robotics, Vision and Parallel Processing for Automation, Ipoh, Malaysia, July 1999
  44. Elizabeth Elias, Anand R. "High performance Connected Word Recognition based on HMM, ", 22nd National systems conference (NSC '98), REC. Calicut, Dec.1998
  45. Elizabeth Elias, Rajesh R. "High Performance keyword Recognition using Hidden Markov models, ", Conference on Advances in Computing (CADCOM '98, REC Calicut, April 1998.