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.
|Title of host publication||Proceedings OCEANS 2003|
|Number of pages||6|
|Publication status||Published - 2003|
|Event||Oceans 2003 - San Diego|
Duration: 22 Sep 2003 → 26 Sep 2003
|Period||22/09/03 → 26/09/03|
|Other||Celebrating the past ... teaming toward the future|