研究了多用户检测技术在宽带CD-MA系统中的应用。
This paper studies the application of multi user detection technique in wideband CDMA system.
然而频繁的发送训练序列严重制约了多用户检测技术的实时性和实用性；
Blind multiuser detection technology can detect the exptected user with only needing the spreading codes and without train sequences and without information of users.
本文主要工作可以概括如下：1．简要讨论了多用户检测的目的与意义；
This article can be summarized as follows:1. The purpose and significance of multi-user detection was briefly discussed;
本文系统研究了多用户检测技术，并实现了解相关算法，在理论研究和实际应用方面都有一定的价值。
This paper gives the research for the MUD, and gives a solution for the DEC, so it has effect in both theory and application field.
研究了频率选择性瑞利衰落信道中的同步MC-CDMA系统上行链路空时信道估计及多用户检测算法。
The space-time channel estimation and multiuser detection algorithm for the uplink of multicarrier CDMA (MC-CDMA) system in frequency selective Rayleigh fading channel were investigated.
该文研究了频率选择性瑞利衰落信道中的异步ds - CD MA系统盲多用户检测。
This paper investigates blind multiuser detection for asynchronous DS-CDMA in frequency selective Rayleigh fading channel.
在讨论了EM算法的基本原理之后，本文详细推导了基于EM方法的多用户检测算法。
After explaining the EM algorithm, this paper gives the derivation of the multi-user detection algorithm based on the EM method.
其次，文中进一步开展了群盲多用户检测器的研究。
Secondly, further analysis have been made to group blind multi-user detection.
进一步分析了信道估计错误对多用户检测器的影响。
We further analyze the effect of channel estimation error on multiuser detection.
本文研究了将智能天线与多用户联合检测结合使用的原理、方法和实现过程。
The principle, method and implementation of combining smart antenna(SA) and multiuser joint detection(JD) techniques are studied.
论文首先从CDMA通信系统出发，研究了CDMA通信中的传统检测方法和多用户检测技术，并对现有的多用户检测方法进行了分析、归纳。
The paper studies the traditional detection method and multi-user detection method in CDMA communication. Meanwhile the existing multi-user method is analyzed and concluded.
针对多址干扰信号的特点，研究了一种改进的硬判决并行干扰多用户检测器。
According to the characteristics of MAI in CDMA systems, a multi user detector is designed by a new hard decision parallel decision algorithm for MAI cancellation.
本文提出了一种无线环境图像监测系统的总体解决方案，实现了重点污染检测对象的多用户图像监测及图像管理。
In this paper, an overall solution of a wireless environment image monitoring system is proposed, which achieved multi-user image monitoring and image management of key pollution.
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。
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.
文中迈进一步仿真分析了信道估计错误对检测器的影响，发现对于较大的信道估计错误，多用户检测器比单用户检测器更敏感。
Further analyzing the effect of channel estimation error on the detectors, it is found that the multiuser detector is more sensitive to big estimation error than the single user detector.
本文介绍了多址干扰在CDMA系统中的成因，并提出通过多用户检测技术可抑制多址干扰(MAI)，从而提高CD MA系统的容量和性能。
This paper introduces cause of formation of MAI in CDMA systems, and points out that Multi-user Detection (MUD) technology can improve capability and performance of CDMA through suppressing MAI.
本文介绍了多址干扰在CDMA系统中的成因，并提出通过多用户检测技术可抑制多址干扰(MAI)，从而提高CD MA系统的容量和性能。
This paper introduces cause of formation of MAI in CDMA systems, and points out that Multi-user Detection (MUD) technology can improve capability and performance of CDMA through suppressing MAI.
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