Sea clutter amplitude modulation and simulation method and device based on multipoint signal model

The invention provides a sea clutter amplitude modulation and simulation method and device based on a multipoint signal model. The method comprises the following steps: performing down-conversion on an input radar signal and measuring the signal amplitude after down-conversion; according to a measurement result and a preset threshold condition, continuously sending a gain control command to realize automatic gain control on the down-converted signal; according to the sea clutter amplitude generated by the multipoint signal model, performing Doppler frequency shift and phase modulation on the signal after automatic gain control, and adding random phase noise to obtain a simulated clutter echo signal; converting the simulation clutter echo signal into a radar signal, performing corresponding signal modulation according to needs, and radiating the radar signal to a tested radar; according to the invention, actual combat training of the tested radar system can be met, production, development and test requirements