摘要
本文首先提出高维直扩通信系统的概念，定义决定系统基本形态的“中介码”．高维直扩系统比现有的几种多进制直扩系统更一般化，可为构造更有效的直扩通信方式拓宽思路．为了减小多址干扰和远近效应提出一种网格编码高维直扩通信方式，并给出在多址环境下系统渐近差错性能的数值结果．最后给出对全文的总结和提出尚待研究的问题．
In this paper a concept of multidimensional DS/SS communication systems is proposed. 'Medium code' is defined which the system performance depends on.These systems are more generalized compared with other known M-ary DS/SS systems,which can broaden our mind to design more powerful DS/SS communication systems.In order to reduce the negative impact of multiple access and near-far interferences a trellis coded multidimensional DS/SS communication scheme is presented,and the numerical results of asyptotic error performance of the systems are given in the case of multiple access. In the end an overall conclusion in conjunction with some issues needed to be explored is drawn.
出处
《电子学报》
EI
CAS
CSCD
北大核心
1997年第4期20-23,共4页
Acta Electronica Sinica
关键词
中介码
直接序列扩频
网格编码
扩频通信
medium code, multidimensional direct sequence spread spectuum(multidimensional DS/SS),trellis coding
