With the help of some users' multi -level relay, the center station can communicate with each user int he system.
通过用户站的多级接力，中心站可以和每一个用户站进行通信。系统硬件简单，占用频率资源少，成本低。
RBF neural network method using OLS algorithm for Multi-user Detection in DS-CDMA Systems is pro-posed, and the theoretic basis and simulation analysis capability are given int his paper.
分析了采用正交最小二乘(ols)算法的RBF神经网络应用于DS - CD MA扩频通信的多用户检测的问题，给出了基于RBF网络进行多用户检测的理论依据和仿真分析性能。
The presented multi-class SVM is of better classification ability and can solve the unclassifiable region problems int.
新的多类SVM在一定程度上解决了传统投票决策方法的不可分区域问题，因此具有更好的分类性能。
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