减小距离模糊影响的机载双基地雷达配置方法

魏民; 李小波; 王理

doi:10.12000/JR16082

减小距离模糊影响的机载双基地雷达配置方法

doi: 10.12000/JR16082

魏民^①, ,,
李小波^①,
王理^②

①.
电子工程学院502室合肥 230037
②.
95865部队北京 102218

基金项目:

国家自然科学基金 61272333

安徽省自然科学基金 1308085QF99

详细信息

作者简介:
魏民 (1993-), 男, 硕士生, 研究方向为雷达信号处理、STAP信号处理

李小波 (1970-), 男, 副教授, 硕士生导师, 研究方向为雷达信号处理、高速信号处理

王理 (1985-), 男, 工程师, 研究方向为雷达信号处理、通信信号处理

通讯作者:
魏民13215608602@163.com

中图分类号: TN911.7
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- 被引次数: 0
出版历程
- 收稿日期: 2016-07-01
- 修回日期: 2016-08-20
- 网络出版日期: 2017-02-28

A Method for Reducing the Impact of Range Ambiguity

Wei Min^{①
, ,},
Li Xiaobo^①,
Wang Li^②

①.
502 Laboratory of Electronic Engineering Institution, Hefei 230037, China
②.
95865 Army, Beijing 102218, China

Funds:

The National Natural Science Foundation of China 61272333

Natural Science Foundation of Anhui Province 1308085QF99

摘要

摘要: 该文针对距离模糊情况下机载双基地雷达杂波抑制难题，提出一种利用几何配置减轻距离模糊影响的方法。首先，利用任意双基配置下的杂波模型来分析距离模糊的影响；其次，建立机载双基地雷达杂波等距离环模型，分析几何配置与距离模糊的关系；最后，求解最大不模糊脉冲重复频率。仿真结果表明：距离模糊使得机载双基STAP杂波抑制性能严重下降；选择合适的双基配置能够有效减轻距离模糊的影响。仿真实验验证了所提方法的有效性
- 机载双基地雷达 /
- 空时自适应处理 (STAP) /
- 距离模糊 /
- 杂波抑制
Abstract: In this paper, we study the clutter suppression problem of an airborne bistatic radar with range ambiguity and propose a novel method to reduce the impact of range ambiguity using geometric configuration. First, a clutter model, under any bistatic configuration is used to analyze the impact of range ambiguity. Second, a clutter equal-distance ring model of the airborne bistatic radar is established, and the relation between the geometric configuration and range ambiguity is analyzed. Third, the maximum pulse repetition frequency required to avoid range ambiguity is calculated. Simulation results show that the clutter suppression performance of an airborne bistatic STAP is greatly diminished with range ambiguity; however, this impact can effectively be reduced by selecting the appropriate radar configuration. Finally, simulation is performed to validate tests its validity.
- Airborne bistatic radar /
- Space-Time Adaptive Processing (STAP) /
- Range ambiguity /
- Clutter suppression

HTML全文

图 1 机载双基地雷达几何模型

Figure 1. Geometric model of airborne bistatic radar

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图 2 坐标转换示意图

Figure 2. The diagram of coordinate transformation

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图 3 双基探测距离计算

Figure 3. Bistatic detection distance calculation

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图 4 配置1距离模糊影响分析

Figure 4. The impact of range ambiguity in configuration 1

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图 5 配置2距离模糊影响分析

Figure 5. The impact of range ambiguity in configuration 2

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图 6 不同几何配置下的距离模糊图

Figure 6. Range ambiguity with different geometric configurations

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图 7 机载双基STAP性能变化曲线

Figure 7. The curve of airborne bistatic STAP performance

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图 8 最大不模糊脉冲重复频率变化曲线

Figure 8. The curve of maximum unambiguous pulse repetition frequency

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