信道化接收处理方法研究

Channelized Reception Processing

现代雷达接收机要求具有瞬时频带宽,良好的灵敏度和动态范围,检测同时到达信号的能力等特点。针对这些问题,采用多相滤波组信道化接收的处理方法,将两个线性调频脉冲信号通过多相滤波组信道化接收机,经信道划分、采样、移频等处理后,实现对多路信号的信道分离,并成功检测到同时到达的信号,降低了信号处理的复杂度,提高了接收机实时处理能力,尤其是提高了雷达接收机全概率截获目标的能力。

Modem radar receivers require a wide instantaneous bandwidth, good sensitivity and dynamic range, and detection of signals arriving at the same time. We use the polyphase filter group of channelized receiver through which pass two linear frequency modulation pulse signals. After channelizing, sampling and frequency shift, chan- nel separation for multi-channel signals and successful detection of the signals arriving at the same time is achieved, thus reducing the complexity of signal processing and improving the real-time processing performance, especially the full probability interception ability of radar receivers.