不同发射波形下多机协同探测雷达系统信号建模与性能分析

杨海峰; 谢文冲; 王永良

doi:10.12000/JR16142

不同发射波形下多机协同探测雷达系统信号建模与性能分析

doi: 10.12000/JR16142

空军预警学院武汉 430019

基金项目: 国家自然科学基金青年基金(61501505, 61501506)，湖北省自然科学基金(2015CFB607)

详细信息

作者简介:
杨海峰(1986–)，男，籍贯湖北省汉川市，现为空军预警学院信息与通信工程专业博士研究生，主要研究方向为空时自适应检测、阵列信号处理。E-mail: 18672954451@163.com

谢文冲(1978–)，男，籍贯山西省万荣县，2008年获国防科技大学信号与信息处理专业工学博士学位，现为空军预警学院雷达兵器运用工程军队重点实验室副教授，已在国内外刊物及学术会议上发表学术论文近百篇，主要研究方向为机载雷达信号处理、空时自适应信号处理等。E-mail: xwch1978@aliyun.com

王永良(1965–)，男，籍贯浙江省嘉兴市，教授，博士生导师，中国科学院院士，现为空军预警学院教授，主要研究方向为雷达信号处理、空时2维信号处理等，已发表论文270余篇，学术专著3部。E-mail: ylwangkjld@163.com

通讯作者:
王永良 ylwangkjld@163.com

中图分类号: TN957.51
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出版历程
- 收稿日期: 2016-12-06
- 修回日期: 2017-05-10
- 网络出版日期: 2017-06-28

Modeling and Analysis of Multiple AEWs Coordinated Detection Radar System with Different Transmit Waveform

Air Force Early Warning Academy, Wuhan 430019, China

Funds: The China National Science Foundation (61501505, 61501506), HuBei Provincial Natural Science Foundation (2015CFB607)

摘要

摘要: 多机协同探测雷达系统利用目标在不同机载雷达间的径向速度差异实现目标的有效检测，该系统已成为当前机载雷达领域的研究热点。该文首先建立了不同发射波形条件下多机协同探测雷达系统的信号模型，并给出了基于广义似然比(Generalized Likelihood Ratio Test, GLRT)准则的自适应检测器及其渐进统计分布特性，最后通过计算机仿真分析了3种特定发射波形下的运动目标检测性能。仿真结果表明多机协同探测雷达系统中发射波形的变化会严重影响雷达系统的运动目标检测性能，且相同发射波形的雷达系统对不同运动速度的目标检测性能也存在区别。
- 多机协同探测雷达系统 /
- 发射波形 /
- 信号建模 /
- 目标检测
Abstract: Differences in target radial velocities of different airborne radar are used for target detection in a multiple Airborne Early Warnings (AEWs) coordinated detection radar system; this subject is currently a popular research topic. In this paper, a collaborative detection radar system model comprised of multiple AEWs with different transmit waveforms is constructed. The Generalized Likelihood Ratio Test (GLRT) based adaptive detector is then proposed and the approximated statistical characters of the detector are analyzed. Finally, the moving target detection performances of three selected transmit waveforms are analyzed by computer simulation; results show that the detection performance of the collaborative detection radar system is influenced by the transmit waveform, and that the detection performances of different velocity targets are different with the same transmit waveform.
- Multiple AEWs coordinated detection radar system /
- Transmit waveform /
- Signal modeling /
- Target detection

HTML全文

图 1 双机协同探测杂波回波示意图

Figure 1. Clutter echo of bistatic airborne radar

下载: 全尺寸图片幻灯片

图 2 天线和目标位置示意图

Figure 2. Locations of antenna and target

下载: 全尺寸图片幻灯片

图 3 协方差矩阵已知且目标速度为(50, –100) m/s时的检测性能曲线

Figure 3. PD versus SNR for known covariance matrix with target velocity (50, –100) m/s

下载: 全尺寸图片幻灯片

图 4 目标速度为(50, –100) m/s时的检测性能曲线

Figure 4. PD versus SNR with target velocity (50, –100) m/s

下载: 全尺寸图片幻灯片

图 5 目标速度为(100, 100) m/s时的检测性能曲线

Figure 5. PD versus SNR with target velocity (100, 100) m/s

下载: 全尺寸图片幻灯片

图 6 目标速度为(100, 60) m/s时的检测性能曲线

Figure 6. PD versus SNR with target velocity (100, 60) m/s

下载: 全尺寸图片幻灯片

图 7 目标速度在x轴方向为零，检测概率与目标y轴速度变化的关系

Figure 7. Relationship between PD and the y-target velocity when the x-target velocity is 0 m/s

下载: 全尺寸图片幻灯片

图 8 目标速度在y轴方向为零，检测概率与目标x轴速度变化的关系

Figure 8. Relationship between PD and the x-target velocity when the y-target velocity is 0 m/s

下载: 全尺寸图片幻灯片

表 1 3种雷达体制下目标落入杂波区的情况

Table 1. Relationship between target and clutter of three radar systems with specific target velocity

雷达体制	目标速度(m/s)	路径
雷达体制	目标速度(m/s)	11	12	13	21	22	23	31	32	33
PA	(50, –100)		√		√			√
	(100, 100)			√	√			√	√
	(100, 60)			√	√		√	√	√	√
PA-DMIMO	(50, –100)		√		√			√
	(100, 100)			√	√			√	√
	(100, 60)			√	√		√	√	√	√
CMIMO-DMIMO	(50, –100)							√
	(100, 100)
	(100, 60)

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