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The maximum amplitude of matching Fourier transform (MFT) spectrum based on re-sampling of sine (single pulse, SP) signal reflected the frequency of the signal. The analysis of the MFT spectrum of SP signal reflected the MFT theories, from which a method to estimate the frequency of SP signal was proposed; The similarity of the MFT spectrum of the SP and linear FM (LFM) signal was analyzed, then the parameter estimation of LFM signal was presented; The characteristic of promoting the MFT spectrum after adding windows was illustrated, so a method to improve the precision of estimation parameter by adding windows was proposed. The experiments and simulations show the efficiency of the parameters estimation of LFM signal.

Based on the principle of correlation detection, a new algorithm of recognizing the binary-phase coded pulse compression radar signal is proposed, which is simple to realize. The simulation shows that the method can effectively complete the BPSK signal parameters estimation, and is superior to that using wavelet, under low signal-to-noise rate (SNR).