相干FDA雷达收发联合多波束方法

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

Abstract

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

CLC Number:

TN957.52

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.

Figures/Tables 10

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References 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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Transceiver joint multi-beam method for coherent FDA radar

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