RCS extraction algorithm for strong scattering sources in target

The invention discloses an RCS extraction algorithm for strong scattering sources in a target. The algorithm includes the following steps that firstly, modeling is carried out on the one-dimensional range profile of the target; secondly, according to analysis of various scattering mechanisms existing in the target and the radial positions of the scattering mechanisms, the mapping relation between the scattering mechanisms in the target and peak values in the one-dimensional range profile is established, and the one-dimensional range profile corresponding to the scattering mechanisms is extracted; thirdly, according to the extraction result of the one-dimensional range profile corresponding to the strong scattering sources in the target, the discrete Fourier transform processing method is adopted to acquire the RCS corresponding to the strong scattering sources. According to the algorithm, the RCS corresponding to the multiple strong scattering sources in the target can be acquired at the same time by carrying out inversion on one radar image, and the application range is greatly expanded.