Comparison of quadratic phase coupling detectors on sonar data

Steve McLaughlin, M J Levonen, R K Lennartsson, J W C Robinson, L K G Persson

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)


Detection and estimation of processes with mixed spectra and coupled harmonies 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.

Original languageEnglish
Title of host publicationProceedings OCEANS 2003
Number of pages6
Publication statusPublished - 2003
EventOceans 2003 - San Diego
Duration: 22 Sept 200326 Sept 2003


ConferenceOceans 2003
CitySan Diego
OtherCelebrating the past ... teaming toward the future


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