一种改进型非线性多用户检测器

An improved non- linear multi- user detector

本文通过分析传统匹配滤波检测器的性能缺陷;并在传统检测器的基础上,依据极大似然和最小方差准则,对传统检测器估计错误的信息比特进行适当修正的思想上,提出了一种改进型非线性多用户检测器。理论分析和仿真表明这种检测器在误码率和复杂度性能方面有了极大提高。

This article analyzs the performance limination of the conventional matched filter; On the basis of analyzing the con- ventional matched filter ,according to the maximum likelihood solution or least squared error solution and the idea of correcting the bit which the matched filter estimated errorly, we introduce an improved non-linear multi-user detector. The theoretical analysis and simulation results show that this detector has greatly improved the performance of the bit error and complexity.