Adaptive Clutter Suppression for Non-Side-Looking Airborne Phased Array Radar
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摘要: 研究了基于非正侧面机载相控阵雷达时空二维自适应杂波抑制方法.通过对时空杂波分布特性的分析,提出采用混迭式结构进行时空二维降维自适应杂波抑制的3种实现结构,其中,空域阵元混迭级联时域脉冲混迭进行自适应处理的实现结构是一种实用的时空二维降维自适应处理方法,该方法充分利用了各阵元信号和脉冲信号的信息,从而达到了较为理想的杂波抑制性能.
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关键词:
- 机载雷达 /
- 信号处理 /
- 天线阵 /
- 时空二维自适应信号处理 /
- 杂波抑制
Abstract: The clutter suppression methods of spatial-temporal adaptive signal processing for non-side-looking airborne phased array radar is studied. On analyzing the non-side-looking spatial-temporal clutter distribution properties,three practical processors are presented based on spatial and temporal repetition structure. Spatial element repetition cascade temporal pulse repetition structure followed by adaptive processing is a practical spatial-temporal adaptive signal processing method. It can achieve sub-optimum performance by using element and pulse signal information more efficiently. -
[1] Brennan L E, Reed I E. Theory of adaptive radar [J]. IEEE Trans AES,1973,9(2):237~252. [2]Klemm R. Adaptive airborne MTI:an auxiliary channel approach [J]. IEE Proc F, 1987, 134(3):269~276. [3]Klemm R. Adaptive airborne MTI:comparison of sideways and forward looking radar. In:Prof Inter Conf Radar 95. 1995. 614~618. [4]Bao Z, Liao G S, Wu R B,et al. Adaptive spatial-temporal processing for airborne radars [J]. Chinese Journal of Electronics, 1993, 2(1):1~7. [5]Wang Y L, Peng Y N. The practical approaches to space-time signal processing for airborne array radar. In:Proceedings of IEEE International Radar Conference. 1995. 126~130. -
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