关键词: 雷达, 灵敏度, 动态范围, 多相滤波组信道化接收机

Abstract:

Modern 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,channel 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.

Key words: radar;sensitivity;dynamic range;polyphase filter set of channelized receiver