多址干扰

但是由于存在多址干扰和符号间干扰，CDMA难于实现高速传输。

But because of the MAI and the ISI , it is difficult for CDMA to achieve high-speed transmission .

随着用户数的增加或信号功率的增大，多址干扰就成为宽带CDMA通信系统的一个主要干扰。

With the increase of users , MAI becomes the main jam of broadband CDMA communication system .

针对现阶段广泛应用信号子空间跟踪算法PAST算法在低信噪比和强多址干扰情况下，估计出信号子空间有较大的误差而提出一种新的信号子空间概念。

The signal subspace tracking PAST has a large error in the situation of low signal-to-Noise and strong interference .

基于CDMA的adhoc网络抗多址干扰分析

Analysis of Anti-MAI for CDMA - Based Ad Hoc Networks

CDMA通信系统多址干扰的仿真研究

Simulation Studies of Multiple Access Interference of CDMA Communication Systems

多址干扰对消及多用户检测技术在CDMA系统中的作用

Multiaccess Interference Cancellation and Multiusers Detection Method in CDMA Systems

光同步CDMA多址干扰消除技术及其性能分析

Optical Synchronous CDMA Multiple Interference Cancellation Techonology and Performance Analysis

差分相干同步CDMA信道中的一种新的抗多址干扰接收机

A New Anti multiuser interferences Receiver in Differentially Coherent Synchronous CDMA Channels

多址干扰抑制在CDMA系统中的仿真实现

Simulation Implementation of the MAI Suppression in the CDMA System

CDMA系统中的信道估计和多址干扰

Channel Estimation and Multiple Access Interference in CDMA System

新型CDMA抗多址干扰接收机的结构及性能

Structure and performance of a new-style anti-MAI CDMA receiver

一种消除CDMA系统多址干扰和码片间干扰的空时处理技术

A space time process technology for MAI and ICI suppression in CDMA systems

OFDM技术对抑制多址干扰的研究

Research on Suppressing Multiaccess Interference by OFDM Technology

码分多址（CDMA）通信系统是一种干扰受限系统，多址干扰不仅影响了系统的性能而且还减少了系统的容量。

Code Division Multiple Access ( CDMA ) communications systems are interference limitation systems .

CDMA系统中自适应阵列天线结合参数估计方法抗多址干扰技术的研究

Combination of an Adaptive Array Antenna and Parameter Estimation for Interference Suppression for CDMA System

混沌CDMA系统中多址干扰分析

Analysis of MAI for chaotic CDMA system

CDMA扩频序列的相关特性是影响其性能的关键因素，其自相关与互相关特性可以有效消除多径干扰与多址干扰。

The correlation characteristic of CDMA spread-spectrum sequence is the key factor to influence their performance .

时分导频位CDMA系统上行链路阵列接收及部分多址干扰抑制技术

Adaptive array processing and partial MAI cancellation technique for the uplink of time-multiplexed pilot bits CDMA system

提出了一种可以在多径环境下消除CDMA多址干扰的新扩频方案。

A new spreading scheme is introduced for nullifying the multi-access interference ( MAI ) for CDMA systems .

如果所有用户采用理想正交扩频码并且通过同步平坦衰落信道，系统中将不会存在多址干扰（MAI：MultipleAccessInterference）。

If the assigned spreading codes are orthogonal and signals are transmitted through a flat fading channel , there will be no multiple access interference ( MAI ) .

随着CDMA移动通信系统容量增大，同频信道中同时处于通信状态的用户数增多，单用户检测器抗多址干扰能力急剧下降。

With the increase of active user numbers in CDMA channels , single user detector cannot effectively suppress MAI .

在传统的DS／CDMA匹配滤波接收中把多址干扰等效成高斯噪声。

The matched filter detector that was used in conventional DS / CDMA treated MAI as Gaussian noise .

MC-CDMA系统中基于QR分解的多址干扰消除算法

Multiaccess interference cancellation algorithm based on QR decomposition for MC-CDMA systems

因此，多址干扰是CDMA通信系统本身存在的自我干扰，它限制了蜂窝系统的通信容量。

Therefore , multiple access interference is self interference of CDMA Communication Systems , it restricts capacity of cell systems .

随着用户数目的不断变化，多址干扰就成为CDMA系统中最主要的干扰。

With the changing number of users , multiple access interference has become the most important interference in CDMA systems .

多址干扰和多径衰落是限制CDMA系统性能的主要因素。

Multiple access interference ( MAI ) and multipath fading are two major factors limiting performances of CDMA communication systems .

DS-CDMA系统多址干扰的改进高斯近似法分析

An Improved Gaussian Approximation Analysis for the MAI of DS CDMA System

在CDMA系统中，采用正交序列可以有效地减小多址干扰的影响。

The multiple access interference ( MAI ) in the CDMA systems can be effectively reduced by the orthogonal spreading sequences .

DS-CDMA系统正交码调制的抗多址干扰性能及其改进

Anti-MAI Performance Analysis and Improvement of Orthogonal Code Modulation in DS CDMA System

频谱相位编码OCDMA系统中多址干扰的统计分析

Statistical Analysis of MAI in Spectral Phase Encoding OCDMA System