基于非脉冲矢量网络分析仪的非反向交叉眼干扰实验设计与分析

doi:10.12305/j.issn.1001-506X.2024.01.07

摘要/Abstract

摘要：

交叉眼技术是对抗单脉冲雷达最有效的方式之一。针对交叉眼干扰多侧重于仿真建模、实验设计及实施复杂等特点, 基于交叉眼干扰原理、单脉冲测角原理和矢量网络分析仪幅相精确测量等特性, 设计了基于喇叭天线、微带天线、幅相调节器和非脉冲矢量网络分析仪组成的非反向交叉眼干扰实验系统。在微波暗室环境下, 先后开展了基于矢量网络分析仪的测角实验和非反向交叉眼干扰实验, 并通过建立干扰天线相位中心电磁仿真模型, 对误差展开了分析。实验和仿真结果表明: 交叉眼干扰下实验测量的角度值与理论角度值随相位差变化趋势一致, 其理论最大角度值与实际最大角度值误差不超过2°, 对应的交叉眼增益误差小于0.5;基于矢量网络分析仪设计的非反向交叉眼实验系统可行, 可模拟非反向交叉眼干扰对被动单脉冲雷达干扰, 亦可部分模拟反向交叉眼干扰应用场景, 为交叉眼干扰机设计和测试提供一定的指导。

关键词: 单脉冲雷达, 交叉眼, 干扰机, 矢量网络分析仪

Abstract:

Cross eye technology is one of the most effective ways to counter monopulse radar. For cross eye interference, the simulation modeling, experimental design, and implementation are more complex. Based on the principle of cross eye interference, the principle of monopulse angle measurement and the accurate measurement of amplitude and phase of vector network analyzer, a non-retrodirective cross eye interference experimental system is designed based on horn antenna, microstrip antenna, amplitude and phase regulator, and non-pulse vector network analyzer. In the microwave anechoic chamber environment, the angle measurement experiment based on the vector network analyzer and the non-retrodirective cross eye interference experiment are carried out successively, and the error is analyzed by establishing the electromagnetic simulation model of the phase center of the interference antenna. The experimental and simulation results show that the change trend of the angle value measured experimentally and the theoretical angle value with the phase difference under the cross eye interference is consistent, the error between the theoretical maximum angle value and the actual maximum angle value is lower than 2°, and the corresponding cross eye gain error is less than 0.5. The non-retrodirective cross-eye experimental system designed based on the vector network analyzer is feasible, which can simulate the non-retrodirective cross eye jamming to the passive monopulse radar, and can partially simulate the retrodirective cross-eye jamming application scenarios, providing some guidance for the design and testing of the cross-eye jammer.

Key words: monopulse radar, cross-eye, jammer, vector network analyzer

中图分类号:

TN974

周亮, 孟进, 刘永才, 李伟, 杨浩楠. 基于非脉冲矢量网络分析仪的非反向交叉眼干扰实验设计与分析[J]. 系统工程与电子技术, 2023, 46(1): 62-70.

Liang ZHOU, Jin MENG, Yongcai LIU, Wei LI, Haonan YANG. Design and analysis of non-retrodirective cross-eye interference experiment based on non-pulse vector network analyzer[J]. Systems Engineering and Electronics, 2023, 46(1): 62-70.

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参数名称	参数
工作频段	SC波段
雷达与干扰机之间的距离/m	1.73
干扰发射天线间距/m	0.5
喇叭天线增益/dB	14
喇叭3 dB波束宽度(E面)/(°)	25
条形微带天线增益/dB	5
条形微带天线3 dB波束宽度(E面)/(°)	110

辐射源	S21		S31		角度/(°)	实际角度/(°)
辐射源	相位/(°)	幅值/dB	相位/(°)	幅值/dB	角度/(°)	实际角度/(°)
天线3	109.7	-37.74	86	-39.18	9.40	8.23
天线4	150.1	-41.25	174	-37.60	9.13	8.23

类型	名称	本文	文献[25]
矢量网络分析仪	端口数量	3端口	2端口
	脉冲收发	不要求	要求
	数据采集和导出	导出S21/S31的幅度和相位	采集和导出射频时域信号
交叉眼干扰机	组成	移相器、衰减器、射频同轴电缆和天线	环形器、衰减器、移相器射频同轴电缆和天线
	交叉眼类型	非反向交叉眼干扰	反向交叉眼干扰
	信号延时	不要求	需将接收的矢网信号延时至雷达接收盲区外
单脉冲雷达	组成	移相器、衰减器、射频同轴电缆和天线	射频同轴电缆和天线
单脉冲雷达	功能模拟	被动单脉冲雷达	主动单脉冲雷达
适用场景	对抗被动单脉冲雷达	验证非反向交叉眼对被动单脉冲雷达的干扰;	不适用
适用场景	对抗主动单脉冲雷达	可部分验证反向交叉眼对主动单脉冲雷达的干扰	可部分验证反向交叉眼对主动单脉冲雷达的干扰

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