均衡PN序列在直序扩频系统中的应用研究  

Application investigation of PN even balanced sequences in DS-SS systems

作　　者：何苏勤[1] 郑慧娟[1] 

机构地区：[1]北京化工大学信息科学与技术学院,北京100029

出　　处：《计算机应用》2007年第2期261-264,共4页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60473032)

摘　　要：获得尽量高的处理增益是设计扩频系统所需考虑的重要因素之一。故从抽样的角度对PN序列展开分析,说明使用均衡PN序列进行扩频有助于提高窄带系统的处理增益。在此基础上,研究产生均衡PN序列的途径,并对序列的相关特性进行了分析。最后,对应用不同PN序列进行扩频的直扩系统进行了仿真,证明结论的正确性。Achieving processing gain as high as possible is one of the important factors that should be taken into account in the design of a spread-spectrum system. This paper analyzed processing gain from a natural sampling point of view. The analysis has showed that very high processing gains can be achieved in band-llmited direct sequence spread-spectnun systems by using PN Even Balanced sequences. Then the way to generate this sequence and its correlation levels were introduced. Finally, simulation results were presented to verify and confirm the correctness of the claim made.

关 键 词：均衡PN序列 处理增益 直接序列扩频 相关特性 

分 类 号：TP393.04[自动化与计算机技术—计算机应用技术]