微弱核爆电磁脉冲信号检测方法综述

A Survey of Detection Methods of Weak Nuclear Electromagnetic Pulse Signal

针对地基远距离和天基过电离层核爆电磁脉冲探测过程中,传统过阈值触发检测方法和周期信号检测方法失效的问题,试图引入适合非周期脉冲信号检测的现代信号处理方法进行检测。介绍了常用的5类9种微弱脉冲信号检测和识別方法,阐述了各种方法的原理与内涵、适合处理的信号和噪声类型,给出了每种方法所能达到的最低检测信噪比门限。在分析了各种方法优缺点的基础上,讨论了各种方法应用于微弱核爆炸电磁脉冲信号探测的可行性和有效性。

Aiming at the invalidation of traditional methods using in the long distance detection of nuclear electromagnetic pulses,we analyze some modern signal processing methods suitable for a-periodic pulse signal detection.This article introduces nine commonly used methods in weak pulse signal detection and identification,and explains the principles and connotations of these methods.The suitable kinds of signal and noise that each method can solve are given in detail,and the lowest detection SNR threshold that each method can achieve is given also.Based on the analysis of the advantages and disadvantages of various methods,the feasibility and effectiveness of these methods applied to the detection of weak nuclear electromagnetic pulse are discussed.