降維STAP方法的兩種基本形式的比較研究
Comparative study of two basic forms in reduced-rank STAP
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摘要: 降維時(shí)空自適應(yīng)處理(Reduced-Rank STAP)已成為機(jī)載雷達(dá)雜波抑制中的關(guān)鍵技術(shù),各種降維方法也層出不窮,該文指出實(shí)際上這些方法都可歸于兩種基本的形式,即基于廣義旁瓣相消器(GSC)結(jié)構(gòu)的形式和從輸出信雜噪比(SINR)的特征空間出發(fā)的形式。由于基于本質(zhì)上的不同形式來(lái)構(gòu)成降維轉(zhuǎn)換矩陣,這兩類方法體現(xiàn)出不同的性能和降維潛力,該文通過(guò)理論分析和有無(wú)誤差情況下的仿真實(shí)驗(yàn)對(duì)這兩種基本形式進(jìn)行了比較研究。
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關(guān)鍵詞:
- 機(jī)載雷達(dá); 空時(shí)自適應(yīng)處理（STAP）; 雜波抑制
Abstract: Reduced-rank STAP has been a key technology in air-borne radar to cancel the clutter. Several methods have been presented through these years. In this paper, those methods are classified into two basic forms-one is based on the generalized sidelobe canceller(GSC), the other is based on the direct form. The differences in the performances and potential of these two catalogs of methods are compared through theoretical analysis. Simulation results in ideal situations and with limited sample are presented. -
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