Irregular contour clutter signal real-time simulation method

The invention discloses a real-time simulation method for clutter signals with irregular contours. The method mainly solves the problems that in the prior art, clutter signal airspace contours are regularized, simulation trueness is poor, and real-time performance is insufficient. The scheme is as follows: 1) recording shape information according to a real clutter shape of the P display; 2) setting a clutter simulation area and radar parameters; 3) calculating an actual clutter operating distance and the number of clutter resolution units under the current wave beam; 4) calculating the scattering cross-sectional area of the clutter resolution unit and the echo power of the first clutter resolution unit; 5) calculating a clutter space correlation coefficient sequence, and modulating the echo power of each clutter resolution unit; 6) generating a plurality of groups of clutter amplitude and phase modulation coefficients, modulating the echo amplitude and phase of each clutter resolution unit in a slow time dime