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lesson3.rar
- 扩频(直接序列扩频)原理 FDMA/TDMA/CDMA原理 现有系统,Spread Spectrum (Direct Sequence Spread Spectrum) Principles of FDMA/TDMA/CDMA Principles of the existing system
ds
- 直序扩频系统的matlab仿真,可以让读者清楚的了解扩频通信的概念以及波形效果-DSSS matlab simulation system that allows readers a clearer understanding of the concept of spread spectrum communication, as well as the effect of waveform
mulitusers2dcdma
- 多用户多载波时频域cdma扩频的仿真,使用类编程。包含发送,信道,接收3个类。有选择用户数,联合扩频,调制,FFT变换,高斯信道和瑞利,解调,解扩,统计误码率等功能,减小仿真点数可使程序运行更快。-Multi-user multi-carrier spread spectrum cdma time-frequency domain of the simulation, the use of programming. Send contain, channel, receiving three c
2008_5
- 在三条径的瑞利信道中,对于直接序列扩频: (1) 请设计DS-CDMA一种具体的码分导引辅助的信道估计方法,接收机分别采用等均益合并、最大比合并。用Simulink进行仿真,测量BPSK的误码率性能,画出比特信噪比与信道估计均方误差的关系曲线,画出比特信噪比与误码率的关系曲线,请解释在误码率为0.01时,两种合并方式所表现的不同的物理意义。 (2) 设频率已经同步,请设计DS-CDMA一种具体的单停顿滑动相关时间同步方法,用Simulink进行仿真(自己编写代码S-Function
dsss
- 简单实用的扩频系统MATLAB源程序,包括直接序列,调频和CDMA-Spread-spectrum systems simple and practical MATLAB source, including direct sequence, frequency modulation and CDMA
Q_DSSS
- 直扩码分多址DS-CDMA是利用高速的WALSH正交码序列作为地址码,与多用户信息数据相乘得到信息数据的直接扩频信号,再经过BPSK调制后发送出去,经过AWGN无线信道的传输后,在接收端与本地产生的地址码进行相关检测,从中将地址码与本地码一致的用户数据选出,把不一致的用户数据删除。-DS-CDMA DS-CDMA is the use of high-speed WALSH orthogonal code sequences as address code, with multi-user in
DS_SpreadSpectrum
- 用Simulink搭建的直接序列扩频(DS-SS)系统仿真模型,仿真结果比较理想。-A simulation on DS-Spread Spectrum communication system based on Simulink toolbox.
cdma01
- CDMA直接序列扩频通信系统仿真程序源代码,使用matlab语言设计的程序源码,完整代码。-Direct sequence spread spectrum CDMA communications system simulation program source code, the use of procedures designed to matlab source language, a complete code.
chaos-ds-ss
- 该程序仿真了混沌序列与传统pn序列的扩频系统误码性能。-Simulation of the process of chaotic sequence with the traditional pn sequence spread spectrum system BER.
zonghe_cdma2000
- cdma2000的完整程序,包括发送和接受两部分,涉及信道编解码,交织,扩频等-gsm complete process, including sending and receiving two parts, related to the channel encoding and decoding, interleaving, spreading, etc.
spread-communication
- 扩频通信系统及MATLAB仿真, 针对cdma的系统仿真完整的matlab源代码-Spread spectrum communication systems and MATLAB simulation, the system simulation for cdma complete source code matlab
DS_CDMA
- 直接序列扩频系统仿真模型,通过学习仿真程序设计的函数运算,可以对其他类似扩频系统举一反三-Direct Sequence Spread Spectrum system simulation model, by learning a function of simulation programming operation, you can learn by analogy to other similar spread-spectrum systems
CDMA
- 本此设计主要目的是掌握并验证多址技术的相关内容,不涉及移动业务的相关技术。通过学习CDMA宽带无线通信技术,掌握直接序列扩频通信的基本理论,掌握基于LabVIEW的通信系统基本设计和仿真方法,利用LabVIEW设计一个包括发送模块和接收模块在内的简单CDMA基带通信系统,实现信号的码分多址,扩频发送和同步接收等功能。-failed to translate
freq_hopp_sprd_spctrm
- 基于BPSK的直接序列扩频编码,效果不错-BPSK-DSSS-CDMA-FFT-Source-Code
functionDSSS
- CDMA DSSS直接序列扩频函数 MATLAB实现-CDMA DSSS Direct Sequence Spread Spectrum MATLAB function to achieve
hvvCDMA
- 在MATLAB环境下实现了CDMA通信系统仿真,程序流程为:随机序列产生--WALSH码扩频--BPSK调制--加入(和不加入)高斯白噪声--BPSK解调--WALSH码解扩,对过程波形进行了存储,对加噪与不加噪情况下的解码结果进行了对比,并绘制出信噪比与误码率关系图。-In the MATLAB environment to achieve a CDMA communication system simulation, the program flow as follows: random s
DS
- DS-CDMA直序扩频通信系统仿真源码,内部含有程序的详细中文解释以及word形势,系统大家下载~-DS-CDMA Direct Sequence Spread Spectrum Communication System Simulation source code, the internal procedures in detail with the Chinese to explain the situation and the word, the system you download ~
CDMApreadspectrumcommunicationinmultipathtimedelay
- CDMA扩频通信在多径时延展宽作用下的误码特性-CDMA spread spectrum communication in multipath time delay spread of the BER performance under
DS_CDMA
- 这是一个相对完整的直接序列扩频码分多址的通信系统的仿真设计,包括编码,扩频调制,解调和解码等模块,并统括系统性能的仿真,验证了系统设计的可靠性。-This is a relatively complete direct sequence spread spectrum CDMA communications system simulation design, including coding, spread spectrum modulation, demodulation and decodi
SimulinkDS-CDMA
- 本文应用simulink建立了常用扩频码序列m序列和Gold序列仿真模型,模拟仿真数据与原理分析高度吻合,证明应用simulink进行常用扩频码序列仿真实验的可行性。-In this paper, simulink establish a common spreading code sequence of m sequences and Gold sequences simulation model, simulation data highly consistent with the prin