脉间伪随机二相码与线性调频复合调制探测系统

提出了一种新的脉间伪随机二相码和线性调频复合脉冲串雷达信号，分析信号复合形式、信号频谱、模糊函数以及距离自相关函数特性。详细阐述了复合探测系统的实现原理，推导了各个阶段的信号形式，分析了复合探测系统多普勒信号的特点及其对相关输出的影响。最后分析其距离／速度分辨率、模糊特性和距离截止特性。结果证明这种复合探测系统具有很好的脉冲压缩性能、距离截止特性及其它雷达信号不可替代的优越性。

Inter-pulse Pseudo-random Binary-phase Code and Linear Frequency Modulation Combined Detecting System

A new combined signal inter-pulse pseudo-random binary-phase code and LFM combined pulse train signal was proposed, and the frequency spectrum function, the ambiguity function and the range self-correlation function were deduced. The working principle of combined fuze was illustrated in detail and the formula of signals in each stage was deduced and the Doppler signal and its effect on the correlation output of combined fuze were analyzed. Finally, the resolution, ambiguity characteristics and the range cut-off characteristic were studied. Research results show that the combined detecting system possesses fine pulse compression performance, range cut-off characteristic and the superiority which other radar signals are not provided with.