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提出了一种新的在线注入式相控阵雷达中频目标信号模拟方法,以线性调频信号为例,结合相控阵雷达目标回波的多通道接收特点,建立了和差信号的模型;然后研究了模拟产生的目标回波信号与雷达接收的原始回波信号的合成过程,给出了相应的合成方法,并且详细讨论了合成过程中的各种状态,对其中一些合成过程进行了仿真验证。研究为今后在线注入式相控阵雷达中频目标模拟器的研制提供了理论指导和设计借鉴。
A new method of simulating mid-frequency target signal for on-line injection phased array radar is proposed. Taking the chirp signal as an example, the model of sum-difference signal is established based on multi-channel receiving characteristics of phased array radar target echo. Then, The synthesis process of the target echo signal generated by the simulation and the original echo signal received by the radar is given, and corresponding synthesis methods are given. Various states in the synthesis process are discussed in detail, and some of the synthesis processes are verified by simulation. The research provides the theoretical guidance and design reference for the future development of the intermediate frequency target simulator for the injection-type phased array radar.