关键词: 宽带脉冲多卜勒雷达, 线性调频, 数字IQ处理, 脉冲压缩, 精确制导

Abstract: Mathematic model of signal processing is established for wideband PD radar. The special requirements for waveform-design of HPRF wideband linear-frequency-modulated pulse Doppler signal are presented. The digital IQ processing method is presented for mono-channel dada with low sampling frequency. Theoretical analysis and simulation result show that the method is superior to the method of mono-channel high-sampling-frequency direct IF sampling used in traditional pulse Doppler radar in the performance of signal energy accumulation.

Key words: wideband pulse Doppler radar, linear-frequency-modulation, digital IQ processing, pulse compression, precision guidance