摘要
扩频信号具有功率谱密度低、抗干扰能力强、隐蔽性能好等优点,且具有良好的抗截获性能,广泛运用于通信、雷达、导航等军事通信系统中。在当前激烈的军事对抗中,制信息权至关重要,对扩频信号进行有效检测具有重要意义。通过阅读国内外文献,根据不同检测算法对扩频信号不同特征的检测特点,总结出五类扩频信号检测算法:基于能量的扩频信号检测、载波频率检测、扩频码周期检测、扩频码速率检测和其他检测法。
The spread spectrum signal has the advantages of low power spectral density,strong anti-jamming ability,good concealment performance,etc.It has good anti-interception performance and is widely used in military systems such as communication,radar and navigation.In the current fierce military confrontation,capturing the information dominance is very important,and it is of great significance to effectively detect spread spectrum signals.By reviewing domestic and foreign literature,according to the detection algorithms to detect different characteristics of spread spectrum signals,five types of spread spectrum signal detection algorithms are summarized,which are energy-based spread spectrum signal detection,carrier frequency detection,spread spectrum code period detection,spread spectrum code rate detection and other detection methods.
作者
王在昌
程剑
苏荣辉
WANG Zaichang;CHENG Jian;SU Ronghui(Army Engineering University of PLA,Nanjing Jiangsu 210001,China;Unit 73636 of PLA,Fuzhou Fujian 350000,China)
出处
《通信技术》
2023年第5期535-543,共9页
Communications Technology
关键词
扩频
信号检测
载波频率
码周期
码速率
spread spectrum
signal detection
carrier frequency
code period
code rate
