短脉冲非相参雷达的补偿相参处理方法研究

汪海波; 黄文华; 姜悦

doi:10.11999/JEIT171147

短脉冲非相参雷达的补偿相参处理方法研究

doi: 10.11999/JEIT171147

西北核技术研究所高功率微波技术重点实验室西安 710024

详细信息

作者简介:
汪海波：男，1987年生，工程师，研究方向为高功率微波技术和雷达信号处理

黄文华：男，1968年生，研究员，博士生导师，研究方向为高功率微波技术

姜悦：女，1989年生，工程师，研究方向为高功率微波技术、特征提取与目标识别

通讯作者:
汪海波 wanghaibo@nint.ac.cn

中图分类号: TN951
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出版历程
- 收稿日期: 2017-12-04
- 修回日期: 2018-05-15
- 网络出版日期: 2018-06-07
- 刊出日期: 2018-08-01

Compensative Coherent Processing Algorithm for Short Pulse Non-coherent Radar

Science and Technology on High Power Microwave Laboratory, Northwest Institute of Nuclear Technology, Xi’an 710024, China

摘要

摘要: 为了对短脉冲非相参雷达信号进行相参处理，该文根据其信号特征，建立了参数化信号模型。分析了信号非相参因素，提出了以匹配滤波和参数估计为基础的补偿相参处理算法。通过理论推导证明了对点目标进行补偿相参处理的可行性。并对距离扩展目标进行了理论分析，推导出其获得近似的补偿相参增益所需要满足的条件。并通过仿真验证了理论分析结果。
- 短脉冲非相参雷达 /
- 补偿相参 /
- 参数估计
Abstract: Based on the characteristics of short pulse non-coherent radar, the parameterized signal model is established. By analysis on the reasons of no-coherence, compensative coherent processing algorithm based on matching filter and parameter estimation is proposed. The rationality of the compensative coherent processing is proved by the mathematical derivation as to single point target. Then, requirement for the range extended target is analyzed in theory, in the condition of approximate compensative coherent processing. Finally, the theoretical analysis results are verified by simulation.
- Short pulse non-coherent radar /
- Compensative coherent processing /
- Parameter estimation

HTML全文

图 1 短脉冲非相参雷达系统组成

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图 2 补偿相参方法

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图 3 频率估计的广义最大似然方法

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图 4 点目标补偿前的信号和补偿相参积累信号波形幅度

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图 5 时域物理光学构建计算目标回波幅度

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图 6 飞机补偿前的信号和补偿相参积累信号波形幅度

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表 1 补偿相参积累的信噪比增益与理论值比较

M	理论值(dB)	仿真估计值(dB)
M	理论值(dB)	点目标	距离扩展目标
2	3.01	3.13	2.06
3	4.77	4.52	4.08
5	6.99	6.61	5.36
10	10.00	10.11	9.85
20	13.01	12.92	12.27
50	16.99	17.00	16.39
100	20.00	19.95	19.49

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