摘要
为有效干扰直接扩频通信系统,通过分析扫频信号及多音信号在干扰直扩通信系统时存在的优缺点,提出了一种针对直扩通信系统的多音扫频干扰技术。该方法将直扩通信系统的频谱划分为若干个子频谱,针对每个子频谱采用扫频信号进行干扰。理论分析和仿真验证表明,该方法可以明显改善扫频干扰直扩通信系统时扫频时间过长以及多音干扰依赖音调位置的缺点,具有良好的干扰效果。
To effectively interfere the direct sequence spread spectrum（DSSS） system, through analysing the advantages and disadvantages of frequency sweeping jamming and multi-tone jamming for DSSS system, a new jamming technology named multi-tone frequency sweeping jamming is presented. The method divides the spectrum of DSSS system into several sub-spectrmn, for each sub-spectrum frequency sweeping jamming is used. Theoretical derivation and simulation result show that this method can overcome the shortcomings that the sweep time is too long in sweeping jamming and multi - tone jamming depends on tone position. This method has an excellent jamming effectiveness.
出处
《电讯技术》
北大核心
2011年第12期9-13,共5页
Telecommunication Engineering
关键词
直接序列扩频系统
扫频干扰
多音干扰
干扰性能分析
direct sequence spread spectrum system
frequency sweeping jamming
multi-tone jamming
jamming performance analysis
