Study of an new signal processing algorithm for satellite receiver based on STAP

Because the satellite receivers usually are interrupted by the strong interference signal, they are out of order and can´t accurately position. The paper researches that the space-time least-mean-square (STLMS) algorithm which is based on space-time adaptive processing (STAP) can restrain jamming and protect satellite signal. Especially, it improves capability of satellite receiver for suppressing broadband interferences, because STLMS algorithm can analyses the property of input signal in both spatial and time-domain. Otherwise, STLMS algorithm is a recursive algorithm and can adaptively estimate the weighting vector of element of smart antenna with a low computational complexity. The result of simulation demonstrates STLMS have the better performance of rejecting the interferences protecting satellite signal than other algorithms.