自编码扩频通信的捕获  

Study on the Acquisition of Self-Encoded Spread Spectrum Communication

作　　者：魏梅[1] 曾洁[1] 孙永梅[1] 李晖[1] 

机构地区：[1]大连交通大学电气信息学院,辽宁大连116028

出　　处：《大连交通大学学报》2010年第4期1-4,共4页Journal of Dalian Jiaotong University

基　　金：辽宁省教育厅高等学校科学研究计划资助项目(20071076)

摘　　要：自编码扩频通信的扩频序列是由待传输的信息中获得的,这种特殊性决定了其同步捕获方式的不同.提出一种基于发送同步码并周期复位的同步方案.理论分析及实验仿真表明,在高斯白噪声信道中,该捕获方案的性能接近传统扩频通信的同步捕获方案,且同步码周期的提高能有效改善其捕获性能.Spread sequences of self-encoded spread spectrum（SESS） are extracted from source data to determines the defference of acquisition scheme.An acquisition scheme is presented based on transmitting the synchronization code and periodically reposition.Theoretical analysis and simulation results show that,in the AWGN channel,the performance of this acquisition scheme aprroaches that of convertioanl spread spectrum system,and the increasement of the synchronization code period helps improving the performance.

关 键 词：自编码扩频通信 同步捕获 混沌序列 

分 类 号：TN914.42[电子电信—通信与信息系统]