Adaptive Suppression of the Ionospheric Clutter in the HFSWR
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In this paper,different kinds of the ionospheric clutter in HFSWR are analyzed,and simulation results of the ionospheric clutter are given. On basis of the analysis,an adaptive suppression method of the ionospheric clutter using the standard CSLC filter is suggested. Using an adaptive process, the weights of the auxiliary antenna outputs are adjusted, and the interference in the main antenna output are estimated. Then the interference estimates are subtracted from the main antenna output. At last,the standard CSLC filter is modified,and an improved cancellation result is given.