Signal Processing Algorithm for Pulse Compression Doppler Radar Altimeters

Range ambiguity of pulse Doppler radar is usually solved by staggering the pulse repetition frequency.However,for using this traditional method,the complexity of radar system and signal processing will be increased.In this paper,a method based on interpulse biphase-coding waveforms for solving the range ambiguity of linear frequency modification(LFM) pulse compressing Doppler radar is proposed.Interpulse biphase-coding modulation not only solves the problem of range ambiguity,but also improves the anti-jamming ability of the radar.Specific signal processing algorithm based on intrerpulse biphase-coding waveform is simulated and the results show the effectiveness of this algorithm.