機載火控雷達慢速目標(biāo)檢測
Slowly moving target detection for airborne fire-control radar
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摘要: 該文研究機載火控雷達對慢速目標(biāo)的檢測方法以及發(fā)射信號帶寬對慢速目標(biāo)的檢測性能的影響。通常情況下,機載火控雷達地雜波多普勒頻率多重模糊,主瓣雜波帶寬大,常規(guī)處理性能很差。該文結(jié)合實際情況。重點分析了機載火控雷達檢測地面慢速目標(biāo)的特點,分析了主瓣雜波這一制約系統(tǒng)檢測性能的主要因素,比較了兩類空時二維處理方案對慢速目標(biāo)的檢測性能。采用較大的發(fā)射帶寬是火控雷達的發(fā)展方向,雷達發(fā)射信號的帶寬是影響系統(tǒng)對慢速目標(biāo)檢測性能的重要因素,該文通過理論分析和仿真試驗比較了不同帶寬情況下系統(tǒng)對慢速目標(biāo)的檢測能力。
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關(guān)鍵詞:
- 空時自適應(yīng)處理（STAP）; 雜波抑制; 信號帶寬
Abstract: In this paper, slowly moving target detection for airborne fire-control radar and the effect of transmitting bandwidth are discussed. The system of this kind is often characterized by the highly ambiguous Doppler frequency of ground clutter and large Doppler bandwidth of mainbeam clutter. In this case, conventional processing can not give systems good performance of detection. Considering the actual conditions, this paper is focused on the features of detection of slowly moving targets by use of the airborne fire-control radar, and the cascade processing and joint processing are compared. Because using large transmitting bandwidth is todays trend, the effect of bandwidth on slowly moving target detection is also discussed. Finally, simulation results are included to validate the conclusions of the bandwidth effect. -
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