| 脉冲干扰直接序列扩频系统性能分析 |
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| 引用本文： | 丁亚非,李文生.脉冲干扰直接序列扩频系统性能分析[J].计算机仿真,2010,27(5):9-12,115. |
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| 作者姓名： | 丁亚非 李文生 |
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| 作者单位： | 解放军电子工程学院,安徽,合肥,230037 |
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| 摘 要： | 研究通信系统中,直接序列扩频通信具有隐蔽性、抗干扰能力强的特点,但对各种大功率窄带干扰却无能为力。在工程实践中发现脉冲干扰能够对直扩信号产生一定的干扰效果,为了了解脉冲信号的对直扩信号的干扰能力,在研究直扩系统的工作原理的基础上,分析了脉冲信号的重复频率、脉冲宽度和直扩系统重复编码对误码率影响,并建立了仿真模型。仿真结果显示,脉冲信号在一定条件下能够对直扩信号产生有效的干扰,使直扩信号的通信性能迅速恶化,值得在工程中推广应用。
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| 关 键 词： | 直接序列扩频 脉冲干扰 误码率 |
Analysis of Pulse Jamming Capabilities for Direct Sequence Spread Spectrum Communication |
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| DING Ya-fei,LI Wen-sheng.Analysis of Pulse Jamming Capabilities for Direct Sequence Spread Spectrum Communication[J].Computer Simulation,2010,27(5):9-12,115. |
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| Authors: | DING Ya-fei LI Wen-sheng |
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| Affiliation: | Electronic Engineering Institute of PLA/a>;Hefei Anhui 230037/a>;China |
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| Abstract: | DSSS has the ability of cover-up and interference rejection.But it does not do well with the interferences of man-made.It has found that the pulse signal has the ability to interfere DSSS system in practice in some extent.To understand this ability of pulse signal and base on studying the theory of DSSS system,the influence of error probability caused by Repeat Interval(PRI),Pulse Width(PW) of pulse signal and Repeat Code of DSSS system has been discussed in this paper,and the model of pulse jamming has bee... |
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| Keywords: | DSSS Plus interference Bit error probability |
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