伪码调相与正弦调频复合引信抗噪性能分析

Performance Analysis of Antinoise of Pseudo-random PM and Sine Frequency Modulation Combined Fuze

介绍了伪码调相与正弦调频复合调制连续波体制引信,以及伪码调相与正弦调频复合调制脉冲体制引信的工作原理,详细推导了它们从带通滤波后至相关检测前这一过程中信号处理方面的信噪比增益,以及至相关检测后整个过程中信号处理方面的总信噪比增益。

First, the principle of the inter-pulse pseudo-random binary-phase code and LFM （PRBC-LFM） combined pulse trains fuze and CW PRBC-LFM combined fuze are introduced in brief. On this basis, their SNR gains （gsNa~） in signal processing from the backward of band pass filter to the forward of the correlation detection, and the overall SNR gains （gSNR） of the whole procedure after correlation detection are deduced in detail.