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Dr. Jacqueline Walker


Dr Jacqueline Walker B.A., B.E. (Hons I), PhD is an expert in synchronization, time and frequency transfer. She has worked on developing systems for time transfer and also made contributions to techniques reducing the probability of metastable failure in digital systems. Dr Walker also has expertise in biomedical, speech and music signal processing, including postgraduate research student supervision and involvement in funded research projects including as Principal Investigator. She is with the Department of Electronic and Computer Engineering at the University of Limerick, Ireland where she currently lectures in Cloud Computing, Digital Electronics and Mobile and Wireless Communications.

Research Interests

Telecommunications: synchronization and end-to-end timing transfer in networks including satellite networks, jitter; Metastability.
Signal processing, especially nonlinear signal processing in a range of application areas: Biomedical: blind deconvolution to recover MUAP from EMG signals, inverse filtering to recover firing patterns; Speech: deconvolution and inverse filtering to recover glottal source, glottal source modelling and analysis; Music: polyphonic music transcription, polyphonic pitch detection, onset detection; Higher Order Statistics, especially bispectrum;

Professional Activities


  • 1997 Curtin University of Technology - Ph.D.
  • 1993 University of Western Australia - Bachelor of Engineering


  • French
  • Italian


Book Chapter


Genetic Programming for Musical Sound Analysis
Loughran, R; Walker, J; O'Neill, M; McDermott, J
Evolutionary and Biologically Inspired Music, Sound, Art and Design LNCS vol. 7247 DOI: 10.1007/978-3-642-29142-5_16


A Review of Glottal Waveform Analysis
Walker, J; Murphy, P
Progress in Nonlinear Speech Processing, WNSP (Workshop on Nonlinear Speech Processing) 2005, LNCS 4391


Advanced methods for glottal wave extraction
Walker, J; Murphy, P
Springer Verlag NOLISP 2005 Lecture Notes in Artificial Intelligence, 3817

Conference Publication


EvoMusart 2012
Loughran, R; Walker, J; O'Neill, M; McDermott, J


20th Irish Signals and Systems Conference
Loughran R Walker J O'Neill M


International Computer Music Conference
Loughran, R., Walker, J., O¿Farrell, M. and O¿Neill, M.


5th International Symposium on Computer Music Modeling and Retrieval,
Loughran, R; Walker, J; O'Farrell, M; O'Neill, M


17th International EURASIP Conference BIOSIGNAL 2004
Shahjahan, S; Walker, J; Lyons, G; Byrne, C A


Stockholm Music Acoustics Conference (SMAC'03)
Liu, R; Griffith, N;, Walker, J; Murphy, P

Peer Reviewed Journal


Experimental and Simulation Study for Commercial Time Transfer Service over Geostationary Satellite
Walker, J;Genova, M
NCSLI Measure: The Journal of Measurement Science


Experimental Evaluation of the Jitter Generated in Timing Transfer
Walker, J; Cantoni, A
Ieee Transactions On Communications DOI: 10.1109/TCOMM.2010.092810.090499


A New Spike Detection Algorithm for Extracellular Neural Recordings
Shahid, S; Walker, J; Smith, LS
Ieee Transactions On Biomedical Engineering DOI: 10.1109/TBME.2009.2026734


Characterization of a flip-flop metastability measurement method
Cantoni, A; Walker, J; Tomlin, TD
Ieee Transactions On Circuits And Systems I-Regular Papers DOI: 10.1109/TCSI.2007.895514


Smart music onset detection combined with band-wise processing
Liu, R; Feurer, K; Griffith, N; Walker, J
Shengxue Jishu


Application of higher order statistics techniques to EMG signals to characterize the motor unit action potential
Shahid, S; Walker, J; Lyons, GM; Byrne, CA; Nene, AV
Ieee Transactions On Biomedical Engineering DOI: 10.1109/TBME.2005.847525


A new reconstruction approach in the SRTS method
Walker, J; Cantoni, A
Ieee Transactions On Communications DOI: 10.1109/TCOMM.2003.819209


Modeling of the synchronization process jitter spectrum with input jitter
Walker, J; Cantoni, A
Ieee Transactions On Communications DOI: 10.1109/26.752138


Determining parameters to minimize jitter generation in the SRTS method
Walker, J; Cantoni, A
Ieee Transactions On Communications DOI: 10.1109/26.655406


A New Synchronizer Design
Walker, J; Cantoni, A
Ieee Transactions On Computers


Jitter Analysis for Two Methods of Synchronization for External Timing Injection
Walker, J; Cantoni, A
Ieee Transactions On Communications