An improved method of generating the self-balanced chaotic spread-spectrum code  

作　　者：安勇 Mu Rongzeng Cao Xiaolin Yan Yuepeng 

机构地区：[1]Institute of Microelectronics, Chinese Academy of Sciences, Beijing 100029, P. R. China

出　　处：《High Technology Letters》2011年第1期46-51,共6页高技术通讯（英文版）

摘　　要：An improved method of generating the self-balanced chaotic spread-spectrum code is presented. The chaotic-map pseudorandom sequence is used as the generated source. After a series of processing two-valued quantization, inversion, all upside down, radix-S block upside down and shift combination, the proposed code is achieved. Theory analysis and simulation performance of the improved code are illustrated. And the results indicate that the suggested method gains a better performance than the traditional one by reasonable choices of the initial value and the S parameter in the im- proved method. Meanwhile the chaotic sequence＇ s characteristic of large addresses is inherited when the chaotic-map is used as the source. This advantage makes this improved code very suitable for the multiple access application in communication system.

关 键 词：spread-spectnun communication chaotic map spread-spectrum code self-balanced 

分 类 号：TN914.42[电子电信—通信与信息系统] TP391.41[电子电信—信息与通信工程]