Sea clutter feature broadening simulation method and system based on multi-point model and medium

The invention discloses a sea clutter feature broadening simulation method and system of a multi-point model and a medium, and the method comprises the steps: measuring a radar signal after frequency conversion, and obtaining a measurement result; performing automatic gain control on the radar signal according to the pulse amplitude and a preset pulse amplitude working threshold condition to obtain a receiving signal; performing down-conversion on the receiving signal subjected to automatic gain control amplitude balance to obtain an intermediate frequency signal; generating a baseband signal of the clutter multi-point signal based on the intermediate frequency signal, and completing the modulation of the amplitude of the clutter multi-point signal and a broadening modulation signal to obtain a clutter interference signal; and performing delay, amplitude modulation and Doppler modulation on the clutter interference signal to obtain an analog radar signal, performing up-conversion on the analog radar signal, a