【摘要】 脉冲多普勒雷达非模糊距离测量可通过发射多重频脉冲实现,但将会增加雷达系统及信号处理的复杂程度,以此为出发点,提出一种针对线性调频脉冲压缩多普勒雷达解距离模糊的方法,即通过对线性调频脉冲串的脉冲间进行相位编码调制,在处理上采用脉冲内(脉压处理)以及脉冲间(多普勒处理)进行二次相参积累算法,除解决雷达的距离模糊问题外,大大提高了雷达对弱信号的检测能力和抗干扰能力,从而也进一步提高雷达的距离性能。该信号波形以及处理算法可在高高度雷达高度表中取得应用。更多还原

【Abstract】 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.更多还原