Abstract:

A radar multi-range false target jamming identification method based on statistical characteristic discrepancy of angle measurements is proposed. Firstly, real targets in the same angle recognition cell are easily mistaken for multirangefalsetarget jamming based on the conventional angle measurements chi-square test. However, the mean value of range measurements difference is time invariant. So that, the existence of the multi-range false target jamming is judged exactly based on the angle measurements chi-square test and the mean variance united test of range measurements difference. Then the measurements are accumulated, and the difference of angle measurements is used to construct a sample set. Finally, the false targets are discriminated from the true target based on the measurements variance clustering, because the variance of false targets is larger than the true target’s variance.