Multi-component signal analysis using the polynomial transform

An iterative algorithm for estimating the parameters of multiple superimposed polynomial phase signals is presented. The algorithm is based on the ability of the discrete polynomial transform (DPT) to estimate the parameters of a polynomial phase signal in the presence of other interfering signals. Once the parameters of one of the signals are estimated, it can be filtered out from the composite signal. The procedure is then applied to the remainder, which contains a small number of components. The DPT is applied to the analysis of the signal emitted by the big brown bat