A New Target Detection Method for Noncooperative Bistatic Radar Based on Fractional Fourier Transform and Wavelet Transform

Although the template matching method is an effective way to acquire direct waves, there is a certain deviation in the acquisition and estimation of direct waves. The deviation of direct wave parameters directly affects the performance of subsequent related algorithms. In this paper, we mainly evaluate the performance of the pulse compression(PC) algorithm with non-cooperative radar parameters, and propose a direct detection method based on fractional Fourier and wavelet denoising. This paper gives the detection performance curve of this new method. The result shows that there is a certain gap between the proposed method and the ideal pulse compression method, but it has excellent performance with respect to the deviation of the direct wave parameters. Therefore, it is an excellent method to detect the target under a specific signal-tonoise ratio in the non-cooperative bistatic radar.