Hybrid inhibition algorithm for ionospheric clutter mitigation in high frequency surface wave radar

Abstract

The undesirable ionospheric clutter has proved to be a major factor restricting the high frequency surface wave radar (HFSWR) detection capabilities in the Beibu Gulf. Here, an ionospheric clutter mitigation processing using hybrid inhibition algorithm is presented. Experimental results show that the general algorithm will improve the first order peak signal-to-noise ratio (SNR), while the clutter is mitigated as well as all the targets remain and also consistent with the regional features of the Beibu Gulf.