前视阵FDA-STAP雷达距离模糊杂波抑制方法

许京伟; 廖桂生

doi:10.12000/JR15101

前视阵FDA-STAP雷达距离模糊杂波抑制方法

DOI: 10.12000/JR15101

许京伟^,,
廖桂生

(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(61231017)

详细信息

作者简介:
许京伟(1987-),男,山东日照人,现为西安电子科技大学雷达信号处理国家重点实验室博士后,主要研究方向为空时自适应处理、频率分集阵列信号处理等。E-mail:xujingwei1987@163.com;廖桂生(1963-),男,广西桂林人,现为西安电子科技大学雷达信号处理国家重点实验室教授,博士生导师,国家杰出青年基金获得者,长江学者特聘教授,先后主持和承担国防973项目课题、国家“863”高新技术项目、国防科技预研、国家自然科学基金重点基金等10余项科研任务。现主要从事雷达探测系统信号处理,包括空时自适应处理、天基预警和阵列信号处理等研究领域。E-mail:gsliao@xidian.edu.cn

通讯作者:
许京伟xujingwei1987@163.com

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- 被引次数: 0
出版历程
- 收稿日期: 2015-09-02
- 修回日期: 2015-09-17
- 网络出版日期: 2015-08-28

Range-ambiguous Clutter Suppression for Forward-looking Frequency Diverse Array Space-time Adaptive Processing Radar

Xu Jing-wei^,,
Liao Gui-sheng

(National Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China)

Funds:

The National Natural Science Foundation of China (61231017)

摘要

摘要: 高重复频率前视阵机载雷达地杂波不仅存在严重的距离依赖性,而且存在距离模糊问题,传统空时自适应处理(STAP)方法在距离依赖和距离模糊同时存在时难以有效实现杂波补偿和杂波抑制。针对距离模糊下的机载雷达杂波抑制问题,该文提出一种基于频率分集阵列STAP雷达的距离模糊杂波分离与抑制方法。该方法利用频率分集阵列发射导向矢量的距离角度2维依赖性,通过空间频率域子空间投影实现距离模糊杂波的分离,然后对分离后的杂波分别进行距离依赖补偿,最终实现无模糊区域和模糊区域的杂波抑制和运动目标检测。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 /
- 距离模糊杂波 /
- 子空间投影
Abstract: In a high pulse-repetitive-frequency forward-looking radar, the clutter echo is not only severely rangedependent but also range-ambiguous. It is therefore difficult to realize clutter compensation and suppression for conventional Space-Time Adaptive Processing (STAP) radar. To alleviate this problem, in this study, a novel range-ambiguous clutter suppression method is proposed for STAP radar with Frequency Diverse Array (FDA). Because the transmit steering vector of the FDA is range-angle dependent, the range-ambiguous clutter can be separated in the spatial domain using a subspace projection approach. The separated clutter can then be compensated using the Doppler warping technique. Finally, the compensated clutter can be suppressed, and target detection is realized in both the unambiguous and ambiguous range regions. Simulation examples demonstrate the effectiveness of the proposed method.
- Airborne radar /
- Space-Time Adaptive Processing (STAP) /
- Frequency diverse /
- Range-ambiguous clutter /
- Subspace projection

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参考文献(19)

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