有关SSSA通信的相关技术  

Performance of spread spectrum synchronous access communication system by orthogonal sequences

作　　者：叶奕亮[1] 

机构地区：[1]南京邮电学院

出　　处：《电讯技术》1990年第2期37-42,22,共7页Telecommunication Engineering

摘　　要：本文在加+1到M系列的正交系列集合基础上,提出一种同步多路接续频谱扩展通信方式.由于在通道之间完全同步的情况下不存在多路干扰,多路通信能力获得改善,功率控制方面的远近问题淡化了,外部干扰得到消除.通过理论分析,文中给出了通道间不同步时的平均误差概率,还讨论了在此情况下多路通信能力下降,功率控制方面的远近问题,以及通道间扩展码不能良好地同步的情况.This paper develops a spread spectrum synchronous access(SSSA) communication system which is based on the use of a set of orthogonal sequences formed by addig na chip of +1 to each of the M sequence. Because the multipe access interference does not exist under the condition of perfect synehronizm between channels. It may be expected that the multipe access capability is improved, the near-far problem is loosened, and the environment containing jammer is immunized. In the paper, the average probability of errors under the condition of lacking synchronizm between channels is given through a theoretical analysis. The degradation in the performance in the multipe access capability and the near-far problem under such condition, as well as under the condition of imperfect spread code synthronizm between channels, is also diseussed.

关 键 词：SSSA 通信系统 扩展频普 相关技术 

分 类 号：TN914.4[电子电信—通信与信息系统]