基于频率分集阵列的机载雷达距离模糊杂波抑制方法

王伟伟; 吴孙勇; 许京伟; 杨晓超

doi:10.11999/JEIT150187

基于频率分集阵列的机载雷达距离模糊杂波抑制方法

doi: 10.11999/JEIT150187

1.
(中国空间技术研究院西安分院西安 710100) ②(桂林电子科技大学数学与计算科学学院桂林 541004) ③(西安电子科技大学雷达信号处理国家重点实验室西安 710071)

基金项目:

国家自然科学基金(61261033, 41201479, 61062003, 61162007)和广西自然科学基金 (2013GXNSFBA019270)

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- 文章访问数: 1652
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- 被引次数: 0
出版历程
- 收稿日期: 2015-02-02
- 修回日期: 2015-05-25
- 刊出日期: 2015-10-19

Range Ambiguity Clutter Suppression for Airborne Radar Based on Frequency Diverse Array

1.
(China Academy of Space Technology-Xi&rsquo
2.
(Department of Computational Science and Mathematics, Guilin University of Electronic Technology, Guilin 541004, China)

Funds:

The National Natural Science Foundation of China (61261033, 41201479, 61062003, 61162007)

摘要

摘要: 针对机载预警雷达运动目标存在距离模糊的问题，该文提出一种基于频率分集阵列体制的空时自适应处理(STAP)距离模糊杂波抑制方法。该方法利用频率分集引入的距离维可控自由度，将距离模糊数反映到信号的导向矢量中，通过将不同距离模糊区域的杂波和目标信号在空间频率域实现分离，并在不同的距离模糊区实现杂波抑制。该方法仅在一个脉冲重复频率下即可实现运动目标检测和距离解模糊，大大提高了机载雷达系统的性能。仿真实验验证了该文方法的有效性。
- 机载雷达 /
- 空时自适应处理 /
- 频率分集阵列 /
- 距离解模糊
Abstract: Focusing on the range ambiguity of the moving target in airborne radar system, a novel Space-Time Adaptive Processing (STAP) approach based on frequency diverse array configuration is proposed for range ambiguous clutter suppression. In the proposed method, the controllable degree-of-freedom is exploited, which is introduced by the frequency diverse. The range ambiguity number is incorporated into the steering vector of the target signal. By separating the different range ambiguous range region in the spatial frequency domain, the target can be detected separately within each range region and thus range ambiguity can be resolved. By using the proposed method, giving only one pulse repetition frequency, the moving target can be detected and the range ambiguity can be resolved simultaneously, which improves the performance of airborne radar evidently. Simulation results demonstrate the effectiveness of the proposed method.
- Airborne radar /
- Space-Time Adaptive Processing (STAP) /
- Frequency Diverse Array (FDA) /
- Range ambiguity resolution

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参考文献(15)

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