Comparison of quadratic phase coupling detectors on sonar data

Detection and estimation of processes with mixed spectra and coupled harmonics is a well-known problem in the analysis of time-series and is of particular interest in classification of sonar signals. In this paper a comparison is made between two quadratic phase coupling (QPC) detection techniques a...

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Bibliographic Details
Published inOceans 2003. Celebrating the Past ... Teaming Toward the Future (IEEE Cat. No.03CH37492) Vol. 3; pp. 1685 - 1690 Vol.3
Main Authors McLaughlin, S., Levonen, M.J., Lennartsson, R.K., Robinson, J.W.C., Persson, L.K.G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 2003
Subjects
Detectors
Digital communication
Engines
Harmonic analysis
Phase detection
Signal analysis
Signal processing
Sonar detection
Testing
Time series analysis
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Summary:Detection and estimation of processes with mixed spectra and coupled harmonics is a well-known problem in the analysis of time-series and is of particular interest in classification of sonar signals. In this paper a comparison is made between two quadratic phase coupling (QPC) detection techniques analytically. One technique adopts a segment and average approach to obtain estimates of the signal bicoherence and then uses a step-wise outlier rejection method to select only relevant data points. The other technique is a single record phase coupling detector which removes the need for multiple independent records. It is shown that analytically the techniques are identical.
ISBN:0933957300
9780933957305
DOI:10.1109/OCEANS.2003.178131