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http://dx.doi.org/10.7471/ikeee.2022.26.4.524

Spatial Filtering based STAP Algorithm for Clutter plus Jamming Suppression  

Hoon-Gee, Yang (Dept. of Electronic Convergence Engineering, Kwangwoon University)
Publication Information
Journal of IKEEE / v.26, no.4, 2022 , pp. 524-530 More about this Journal
Abstract
When radar return contains strong jammers along with ground clutter echo, a STAP(space-time adaptive processing) algorithms tend to suppress jammer components more severely than it does the clutter. This hinders moving target detection in that the target echo is apt to be buried by clutter echo. This paper presents a two-step STAP algorithm in which the pre-suppression of jammer by the spatial filtering is applied, prior to applying the STAP algorithm. We propose how to find the coefficients of the spatial filter and show that the spatial filtering barely alter the spectra of the target and the clutter echo, having only to suppress the jammers. Finally, we simulate a STAP scenario with strong jammers and show the proposed algorithm can improve STAP performance.
Keywords
jammer; STAP; clutter; suppression; spatial; Doppler;
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