雷达信号级仿真中模型耦合问题及解决方法研究

Research on Model Coupling and Resolution in Radar Simulation on Signals

对雷达信号级仿真中由于雷达采用非线性的对数接收机造成的目标回波小尺度幅度起伏特性模型与接收机模型相互耦合的原因和所产生的影响进行了分析。为消除模型耦合的影响,从模型解耦的角度出发,提出了指数恢复+直接回放方法;从保证仿真中的对数接收机输出与实际雷达的对数接收机输出相一致的角度出发,提出了输出合成方法。输出合成方法在一个雷达信号级仿真系统中得到了成功的应用。

The cause of target echo ripple model coupling with receiver model and the effect in radar simulating on signals were analysed. For removing the effect, from the aspect of unchaining the model coupling, the method of exponent comeback ＋ playing back directly was given and from the aspect of making simulation output and real output of log receiver accord, the method of composing outputs was given. The method of composing outputs has been applied in a radar simulation system on signals.