相干FDA雷达收发联合多波束方法

doi:10.12305/j.issn.1001-506X.2025.05.11

系统工程与电子技术 ›› 2025, Vol. 47 ›› Issue (5): 1487-1494.doi: 10.12305/j.issn.1001-506X.2025.05.11

• 传感器与信号处理 • 上一篇

相干FDA雷达收发联合多波束方法

张军¹^,², 许京伟¹^,*, 王柯祎¹, 廖桂生¹, 李军¹, 蔡兴雨²

1. 西安电子科技大学雷达信号处理全国重点实验室, 陕西西安 710071
2. 西安电子工程研究所, 陕西西安 710100

收稿日期:2024-04-11 出版日期:2025-06-11 发布日期:2025-06-18
通讯作者: 许京伟
作者简介:张军 (1989—), 男, 博士研究生, 主要研究方向为频率分集阵列雷达
许京伟 (1987—), 男, 教授, 博士, 主要研究方向为频率分集阵列雷达、机载/天基雷达动目标、同时多功能雷达
王柯祎 (1998—), 女, 博士研究生, 主要研究方向为频率分集阵雷达、运动目标检测
廖桂生 (1963—), 男, 教授, 博士, 主要研究方向为阵列信号处理、空时自适应处理、天基预警雷达系统
李军 (1972—), 男, 教授, 博士, 主要研究方向为阵列信号处理、空时自适应处理、多通道雷达信号处理
蔡兴雨 (1967—), 男, 研究员, 硕士, 主要研究方向为雷达系统设计
基金资助:
国家自然科学基金(61931016);国家自然科学基金(62071344);陕西省自然科学基础研究计划(2023-JC-JQ-55);陕西省自然科学基础研究计划(2024JC-TBZC-19)

Transceiver joint multi-beam method for coherent FDA radar

Jun ZHANG¹^,², Jingwei XU¹^,*, Keyi WANG¹, Guisheng LIAO¹, Jun LI¹, Xingyu CAI²

1. National Key Laboratory of Radar Signal Processing, Xidian University, Xi'an 710071, China
2. Xi'an Electronic Engineering Research Institute, Xi'an 710100, China

Received:2024-04-11 Online:2025-06-11 Published:2025-06-18
Contact: Jingwei XU

摘要/Abstract

摘要：

针对相干频率分集阵列雷达距离/时间-角度依赖的信号收、发处理问题, 提出一种基于角度依赖匹配滤波的频率分集阵雷达收发联合多波束设计方法。该方法可以同时实现等效发射数字波束形成和信号脉冲压缩匹配处理。且不同空间角度的雷达回波信号可以独立进行处理, 通过联合接收数字波束形成技术, 可以同时进行收发联合波束形成, 实现同时多波束广域宽角覆盖, 满足雷达广域搜索任务的需要。仿真实验证明了所提方法的有效性。

关键词: 相干频率分集阵列, 角度依赖匹配滤波, 收发联合波束形成, 广域宽角覆盖

Abstract:

Focused on the range/time-angle-dependent signal transceiver and processing issue with the coherent frequency diverse array (FDA) radar, an FDA radar transceiver joint multi-beam design method based on angle-dependent matched filter (ADMF) is proposed. This method can realize equivalent transmit digital beamforming and signal pulse compression matching processing at the same time. Echo signals from different spatial angles can be processed in parallels. Combining with the joint receiving digital beamforming technology, it is possible to implement joint transceiver beamforming simultaneously to realize the simultaneous wide-field wide-angle coverage of multi-beam, and meet the requirement of radar wide-field search task. Simulation examples demonstrate the effectiveness of the proposed method.

Key words: coherent frequency diverse array, angle-dependent matched filter (ADMF), joint transceiver beamforming, wide-field wide-angular coverage

中图分类号:

TN957.52

张军, 许京伟, 王柯祎, 廖桂生, 李军, 蔡兴雨. 相干FDA雷达收发联合多波束方法[J]. 系统工程与电子技术, 2025, 47(5): 1487-1494.

Jun ZHANG, Jingwei XU, Keyi WANG, Guisheng LIAO, Jun LI, Xingyu CAI. Transceiver joint multi-beam method for coherent FDA radar[J]. Systems Engineering and Electronics, 2025, 47(5): 1487-1494.

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参考文献 32

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参数	参数值	参数	参数值
参考载频/GHz	3	频率步进量/kHz	100
发射(接收)阵元数	8	阵元间距/m	0.05
信号带宽/MHz	20	采样率/MHz	40
脉冲重复频率/kHz	10	脉冲数	64

目标	目标角度/(°)	目标距离/km	目标速度/(m/s)	SNR/dB
目标1	0	10	-100	-20
目标2	30	5	-50	-10

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相干FDA雷达收发联合多波束方法

Transceiver joint multi-beam method for coherent FDA radar

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