機(jī)載預(yù)警(AEW)相控陣?yán)走_(dá)雜波抑制的時(shí)空配對濾波法
NONADAPTIVE JOINT FILTERING PROCESSING APPROACH FOR PHASED ARRAY AIRBORNE EARLY WARNING RADARS
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摘要: 抑制雜波一直為機(jī)載預(yù)警(AEW)雷達(dá)信號處理的關(guān)鍵技術(shù)。本文根據(jù)機(jī)載相控陣?yán)走_(dá)側(cè)面陣的雜波譜特點(diǎn),提出了一種用時(shí)空二維配對濾波處理來抑制AEW雷達(dá)雜波的準(zhǔn)最優(yōu)方法,該方法的特點(diǎn)是運(yùn)算量小,能實(shí)現(xiàn)實(shí)時(shí)處理,且對低速目標(biāo)的檢測性能較常規(guī)的空時(shí)級聯(lián)處理有較大程度的改善。另外,該方法還可以推廣到其它非側(cè)面陣的情形。
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關(guān)鍵詞:
- 機(jī)載預(yù)警（AEW）雷達(dá); 雜波抑制; 時(shí)空配對濾波法
Abstract: It is the key to suppress ground clutter for airborne early warning (AEW) radars. In this paper, a temporal-spatial nonadaptive joint filtering processing approach is proposed to suppress clutter for AEW radars. The computation load of this approach is small, and the performance for detecting slowly moving targets is better than that of the conventional cascaded nonadaptive processing. -
Brennan L E, Reed L S. IEEE Trans. on AES, 1973. AES-9(2): 607-615.[2]Klemm R. IEEE Prac.- F, 1987. 134(3): 269-276.[3]Olen CA. IEEE Trans, on AP,1990. AP-38(10): 1666-1676.[4]廖桂生.相控陣天線AEW雷達(dá)時(shí)-空二維自適應(yīng)處理:[博士論文].西安電子科技大學(xué),1992,6-11. -
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