摘要
简单介绍了伪码调相与脉冲多普勒复合引信的工作原理。详细推导了它在相关检测前的信噪比增益,以及相关检测的最大输出峰值功率信噪比。结果表明复合引信具有较强的抗噪声性能,在相关检测前的信噪比增益为2αcos2(ω0τ0),而相关检测的最大输出峰值功率信噪比为PαA2rEcos2(ω0τ0)/n0。
First, the principle of pseudorandom code phase modulation and pulsedoppler combined fuze is introduced in brief. On this basis, the SNR gain before and the maximum mainlobe peak power SNR in the correlation detection are deduced in detail. The results show that the SNR gain is , and the maximum mainlobe peak power SNR is , which prove that the combined fuze has strong performance of antinoise.
出处
《探测与控制学报》
CSCD
北大核心
2003年第3期44-47,共4页
Journal of Detection & Control
基金
国防重点预研项目(413050305)
关键词
伪码
抗噪声
信噪比
相关检测
引信
pseudo-random code
antinoise
signal-to-noise ratio
correlation detection
Fuze
