The third problem is about multi-user detection.
多用户检测的问题。
The joint detection technology is one kind of multi-user detection.
联合检测技术是移动通信中多用户检测技术的一种。
Secondly, further analysis have been made to group blind multi-user detection.
其次，文中进一步开展了群盲多用户检测器的研究。
Firstly, put forward the Adaptive Immune Algorithm and put it in multi-user detection.
首先，提出一种自适应免疫算法，并用于多用户检测。
The multi-user detection is a key technique to solve the problem of MAI existing in DS-CDMA system.
多用户检测技术是码分多址系统中解决多址干扰的关键技术。
The quantum multi-user detection (QMUD), which based on quantum detection, can solve this problem efficiently.
利用量子态物理特性，通过量子检测能够有效地解决这一难题。
The method of overcoming ICI is equilibrium, and ISI can be restrained by using multi-user detection technology.
克服码间干扰常用均衡的方法，而同信道干扰则可利用多用户检测加以抑制。
Non-linear Multi-user detection technology including interference cancellation and neural network detection technology.
非线性多用户检测包括干扰消除和神经网络检测技术。
This article can be summarized as follows:1. The purpose and significance of multi-user detection was briefly discussed;
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；
After explaining the EM algorithm, this paper gives the derivation of the multi-user detection algorithm based on the EM method.
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。
Multi-user detection technique can cancel multi-access interference, so it can enhance the capacity and performance of CDMA system.
利用多用户检测技术可以抑制多址干扰，从而提高CDMA系统的容量和性能。
Educe the concept of subspace approach for multi-user detection, give out the subspace expression about DEC and MMSE multi-user detection.
引出了子空间方法多用户检测的概念，并给出了线性解相关(dec)多用户检测和最小均方误差(MMSE)多用户检测的子空间表示。
The result of simulation demonstrates that the introduction of the technology of multi-user detection makes address code used effectively.
分析结果表明，在系统中引入多用户检测技术可以抑制多用户干扰带来的影响，有效提高系统用户容量。
Based on the principle of synchronous OFDM-IDMA, a low-complexity sliding-window based asynchronous multi-user detection algorithm is proposed.
在同步OF DM - ID MA原理的基础上，提出了低复杂度的基于滑动窗口的异步多用户检测算法。
The multi-user detection is realized by the modified partial parallel interference cancellation (PPIC), and estimates TV channels aided by pilots.
它使用改进的部分并行干扰消除算法实现多用户检测 ，并在导频辅助下估计时变信道 。
An iterative multi-user detection receiver structure is proposed for multiple input multiple output interleave division multiple access (MIMO-IDMA) systems.
提出了一种多入多出交织分多址(MIMO- IDMA)系统的迭代多用户检测架构。
The multi-user detection algorithm based on the EM method is used to look for the maximum-likelihood estimation of users' data iteratively in a DS-CDMA system.
基于EM方法的多用户检测算法采用EM迭代方法来求解DS-CDMA系统中各用户发送数据的最大似然估计解。
Considering computational complexity and system performance, multi-step iterative multi-user detection technology is brought forth based on iterative MUD and MSJD.
同时考虑运算量和系统性能，将迭代MUD和MSJD技术结合起来，提出了多步迭代MUD技术。
The work in this thesis is a part of the Nature Science Research Project of Anhui province "Research on blind adaptive multi-user detection in CDMA systems" (03042208) .
本论文结合安徽省自然科学基金项目“CDMA自适应盲多用户检测方法的研究”（03042208）。
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.
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 teaching goal of this course is to introduce systematically the theory and approach of channel estimation and multi-user detection in modern wireless communication system.
本课程的教学目的在于系统地介绍现代无线通信系统中所涉及的有关信道估计以及多用户检测的理论与方法。
The technique combining MAP-based multi-user detection (MUD) with channel decoding can greatly improve performance and capacity of broadband CDMA mobile communication systems.
联合MAP多用户检测与信道解码的迭代多用户检测(MUD)技术可显著提高宽带移动CD MA系统的容量和性能。
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.
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 third Generation mobile communication system includes highly effective channel encoding-decoding, software radio, smart antenna, multi-user detection and interference cancellation etc.
第三代移动通信系统的关键技术包括高效信道编译码技术、软件无线电技术、智能天线技术、多用检测和干扰消除技术等。
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。
The multi agent detection system can simultaneously monitor networked computer's activities at different levels, including the user level, system level, process level and packet level.
多代理检测系统同时在不同层次监视联网计算机的活动情况，包括用户级、系统级、进程级和数据包级。
A new mixed serial parallel multi user detection algorithm with decision feedback was proposed on the basis of RLS algorithm.
提出了一种基于RLS算法的新的决策反馈串并混合型多用户检测算法。
A novel approach is proposed for linear multi user detection in conjunction with transmit diversity to combat channel fading, multi user interference and inter symbol interference.
提出了一种将线性多用户检测与发射分集相结合的新方法，该方法能在克服信道衰落的同时抑制多址干扰和码间串扰。
This paper studies the application of multi user detection technique in wideband CDMA system.
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.
研究了多用户检测技术在宽带CD-MA系统中的应用。
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