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

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.