码分多址系统

格形编码调制（TCM）技术在码分多址系统中的应用

Application of Trellis Coded Modulation Technique to CDMA System

通过色散补偿光纤与非循环单重合码相结合，改善了快跳频光码分多址系统（FFHOCDMA）的误码率性能。

The scheme of dispersion-compensated fiber ( DCF ) and non-cyclic one-coincidence sequence was proposed to im-prove the BER performance of fast frequency-hopping optical CDMA system ( FFH OCDMA ) .

使用任意chip波形时准同步码分多址系统的性能分析

Performances Analysis of Quasi synchronous Code Division Multiple Access System Using Arbitrary Chip Waveform

基于Turbo编码和二进制脉冲位置调制的快跳频光码分多址系统

Turbo-Coded Optical Fast Frequency-Hopping CDMA System Based on Binary PPM Modulation

用于光码分多址系统的一种3-D地址码

A 3-D Code for OCDMA System

GOLD码发生器广泛应用于CDMA码分多址系统。其主要用途是产生具有良好相关特性的码序列。

GOLD code generators are used extensively in CDMA system to generate code sequences with good correlation properties .

针对光谱相位编码光码分多址系统（OCDMA）的信息侦听技术进行了研究。

The information eavesdropping techniques of spectral phase-coded OCDMA system were investigated .

BCH信道编码对快跳频光码分多址系统性能的改善

Performance Enhancement for FFH-OCDMA Systems by BCH Channel Coding

IS-95码分多址系统上行信道接收机捕获单元的设计及FPGA实现

The Design and FPGA Realization of the Capture Unit in Uplink Channel Receiver of IS 95 CDMA Cellular System

多载波扩展频谱码分多址系统（MC／CDMA）是一种消除符号间干扰的有效技术。本文提出了一种新的多载波码分多址（MC／CDMA）系统。

MC / CDMA is one of the effective techniques to mitigate the ISL In this paper , a new MC / CDMA system is proposed .

OVSF码对码分多址系统信号峰平功率比的影响

Influence of OVSF code on peak-to-average power ratio in code-division multiple access systems

仿真研究了传输信道和光功率对光码分多址系统性能的影响，分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。

The influences of length , dispersion index and attenuation index of transmission fiber and incident optical power on BER ( bit error rate ) and Q value of the system is analyzed .

总而言之，TDCS是一种具有频谱自适应能力的宽带码分多址系统。

In a word , TDCS is a spectrum agile and broadband Code Division Multiple Access ( CDMA ) technology .

采用MonteCarlo的方法，在无线衰落信道下对采用混沌序列和Gold序列的异步码分多址系统进行了仿真。

Monte Carlo simulations of an A CDMA system with chaotic sequences and Gold sequences for a wireless fading channel show that the properties of optimized chaotic sequences are better than those of gold sequences in A CDMA systems .

提出了一种宽线性动量LMS算法，分析了算法在均方意义下的收敛性，给出了算法稳定条件和失调公式，以及算法应用于码分多址系统多址干扰抵消的效果。

A widely linear momentum LMS algorithm for CDMA MAI suppression had been proposed . Its mean square convergence had been analyzed , and its stability region and misadjustment had been found out .

分析了时分同步码分多址系统（TD-SCDMA），终端误差矢量值（EVM）指标的一致性测试需求，提出了一种基于迭代的EVM一致性测试算法。

The requirement of error vector magnitude ( EVM ) measurement in conformance test was analyzed . A novel EVM measurement algorithm based on the iterative process was presented .

基本LS（linkspacecode）码具有零相关窗（IFW）且被用于传统大区域同步码分多址系统（LAS-CDMA），但其零相关窗的分布是不均匀的。

Basic link space code ( LS ) code has interference free window ( IFW ) and is used by traditional large area synchronous-code division multiple access ( LAS-CDMA ) system , but this IFW is not uniformly distributed .

分析了基于光正交码（OOC）的光码分多址系统的性能。

Analyzes the performance of unipolar OCDMA system using optical orthogonal code ( OOC ) considering the dispersion and nonlinearity effect of the transmission medium .

采用MonteCarlo的方法，在AWGN信道下，分别采用混沌优选序列和一类四相准最优序列作为扩频序列，对复数处理的异步码分多址系统进行了仿真。

Monte Carlo simulations in A CDMA system with complex processing and quaternary data modulation are carried out on AWGN channel , where chaotic sequences and one kind of quasi optimum quaternary sequences are employed to spread spectrum respectively .

在频谱相位编码光码分多址系统中，多址干扰（MAI）的包络特性将直接影响系统误码率公式的推导。

In a spectral phase encoding optical code division multiple access ( SPE OCDMA ) system , the envelope behavior of multi access interference ( MAI ) directly affects the bit error rate of the system .

光码分多址系统中光学相关接收机判决阈值的分析

Analysis of decision threshold for optical correlation receivers in OCDMA system

多载波码分多址系统联合特征码与子信道动态分配

Joint Spreading Sequence and Subchannel Dynamic Allocation in Multicarrier CDMA System

二维光码分多址系统及其编/解码器设计

Two-dimensional Optical CDMA Networks and the Design of Encoder / Decoder

在此基础上，提出了光跳频码分多址系统的改进方案。

Finally , a modified scheme of FFH-OCDMA system was proposed .

光码分多址系统关键技术与发展前景

Key techniques for implementation of optical CDMA and its development prospects

码分多址系统中基于判决引导的窄带干扰抑制非线性算法

Decision-Directed Based Nonlinear Algorithm for Narrowband Interference Suppression in CDMA Systems

码分多址系统中基于小波变换的多用户检测

Multiuser Detection Based on Wavelet Transform in Direct Sequence CDMA Systems

空时分层结构码分多址系统的上行多用户检测

Uplink multiuser detection for CDMA systems based on layered space-time coding

频谱相位编码光码分多址系统中多址干扰的包络特性

Envelope Behavior of Multiple-Access Interference in Spectral Phase Encoding OCDMA Systems

频域相位光码分多址系统性能的研究

Investigation on Performance of OCDMA System with Spectrum-Phase En / Decoder