基于混叠脉冲压缩处理的脉冲簇设计

摘要

基于脉冲压缩技术进行脉冲簇高脉冲重复频率的时序设计,采用不同中心频率的参考信号进行全去斜处理的方法,然后通过低通滤波器进行滤除,将混叠脉冲进行有效分离.处理方法具有灵活性和多样性,可以提高系统的脉冲重复频率,可以实现12％以上的占空比.高脉冲重复频率的脉冲簇设计,可以获得高采样数,对于星载的应用具有重要意义.通过仿真进行验证,可以达到5～13 kHz的高脉冲重复频率.%In order to high pulse repetition frequency sequence (PRF),a burst pulsing design based on aliasing pulse compression processing is analyzed,and using different center frequency of reference signal to de-chirp,and then through a low-pass filter to separate the aliasing pulses effectively.Processing method has flexibility and diversity,can improve the pulse repetition frequency of the system,and can achieve more than 12％ of the duty ratio.High pulse repetition frequency pulse cluster design can obtain more observations,which is of great significance for the application of spaceborne.The simulation results show that it can reach high pulse repetition frequency about 5～ 13 kHz.