Performance of M-ary Spread Spectrum Communication System present in multipath

摘要：

The M-ary spread spectrum systems with zero correlation zone (ZCZ) sequences were fabricated and analyzed present in multipath. The analyzed results show the ZCZ sequence M-ary spread spectrum systeM has stronger anti-multipath interference ability than Walsh sequence M-ary spread spectrum system. The simulated channel is composed of a line of sight (LOS), 9 specular reflection and a diffuse multipath component whose power is 10dB less than that of the line-of-sight signal. In case of BER=lE-2 and 25% reflecting strength, the S/N of ZCZ sequence 4-ary spread spectrum systems has about 0.8dB improvement than that of Walsh sequence 4-ary spread spectruM system; In case of BER=3E-2 and 50% reflecting strength, the S/N has about 1.7 dB improvement. Those results imply that present system is useful to design high spectrum efficiency and strong anti-multipath interference spread spectrum systems.

关键词： M-ary spread spectrum zero correlation zone sequence Walshequence multipath interference

作者: WANG Bing ZHANG Lan

作者单位: Signal transmitting and processing division, Space Star Technology Co.Ltd., Beijing, China School of Information Engineering University of Science and Technology Beijing , Beijing, China

会议类型: 国际会议

会议名称: International Conference on Space Information Technology 2009(2009年第三届空间信息技术国际会议)

会议地点: 北京

会议语种:英文

页码: 1-5

在线出版日期: 2009-11-26（万方平台首次上网日期，不代表论文的发表时间）