APPARATUS AND METHOD FOR ESTIMATING LFM SIGNAL PARAMETER OF ACTIVE SONAR SYSTEM

摘要

The present invention an apparatus and method for estimating a linear frequency modulation (LFM) signal parameter of an active sonar system that estimates a parameter of an LFM signal. The apparatus for estimating an LFM signal parameter of an active sonar system comprises: an LFM input part inputting an LFM signal spread from a target through a sensor; a partial Fourier transform part performing a partial Fourier transform on the input LFM signal by using an optimal change order; a time-frequency analysis part extracting a time-frequency parameter in the partial Fourier transformed spectral area; and an LFM parameter estimation part estimating a parameter of the LFM signal by using the extracted time-frequency parameter.;COPYRIGHT KIPO 2017