Satellite-borne bistatic radar multi-channel sea clutter modeling method and system

The invention provides a multi-channel sea clutter modeling method and system for a satellite-borne bistatic radar. The method comprises the following steps: calculating a satellite-sea geometrical relationship; calculating a two-way directional diagram of the satellite-borne bistatic radar antenna; modeling a sea surface time-varying motion model; calculating a sea clutter bistatic scattering coefficient; and spaceborne bistatic radar multi-channel sea clutter echo synthesis is carried out. According to the method, high-precision modeling of the multi-channel sea clutter of the satellite-borne bistatic radar can be realized under different bistatic configurations and system parameters, and the problems that an existing model does not consider internal movement of the multi-channel sea clutter of the satellite-borne bistatic radar and does not consider the influence of different polarization modes and azimuth bistatic angles on a bistatic sea clutter scattering coefficient are solved. 本发明提供了一种星载双基雷达多通道海杂波建模方法