Digitized Periodic Wigner-Hough Transform and its Performance Analysis
Xiang Chong-wen · Telecommunication Engineering · 2012
Linear Frequency Modulation Continuous Wave(LFMCW) detection performance of the digitized Periodic Wigner-Hough Transform(PWHT) algorithm is studied.Firstly,the weak signal detection performance is analysed through the derivation of the gain of the input signal-to-noise ratio(SNR) of a noisy LFMCW signal to the output SNR after PWHT processing.Then,the PWHT and Wigner-Hough Transform(WHT) detection performances are compared by obtaining the promotion of the gain of the input SNR to the output SNR after PWHT processing and WHT processing.Finally,the quasi-coherent integration effect of the PWHT algorithm in LFMCW detection is demonstrated through simulations,and the fact that PWHT performs better in the detection of LFMCW signal than WHT is also verified.