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CDMA扩频通信原理.rar
- 详细介绍CDMA扩频通信原理，
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
Walsh_Mod
- CDMA中正交walsh码，用来扩频的matlab 仿真程序。-CDMA in the orthogonal walsh code for spreading the matlab simulation program.
ds-ss
- 直接序列扩频信号的产生与捕获模拟 调用GoldGenerator.m生成GOLD伪码-GoldGenerator and DS-SS
kuoping
- 扩频通信中的捕获问题，用GOLD码进行扩频， PN码相位捕获，利用捕获的相位，接收机产生偏移的GOLD码，进行解扩和误码率计算-Capture the problem in spread spectrum communication, spread spectrum codes with GOLD, PN code phase acquisition, the use of capture phase, the receiver generates offset GOLD code, for d
DSSS
- 设计一个有干扰的直接序列扩频通信系统， PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generato
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
up_buhuo
- 这是一个VERILOG接收端捕获模块，扩频码32倍，可以检测到相关峰-This is a VERILOG receiver capture module ,the spreader is 32,it can test the correlation peak
kuopin
- 一个基本利用simulink实现的扩频通信系统，包含扩频、调制、解扩、解调，可以比较全面的了解扩频系统的组成。-Simulink realization of a basic use of spread-spectrum communication systems, including spread spectrum, modulation, despreading, demodulation, can be a more comprehensive understanding of the c
dsss-mdl
- 实现扩频通信，包括了PN码同步，扩频调制解扩-Realize spread spectrum communication, including the PN code synchronization, spread spectrum modulation solution extender
oneuserdscdma
- 单用户dscdma的仿真，使用类编程。包含发送，信道，接收3个类。有扩频，调制，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。-Single-user dscdma the simulation, the use of programming. Send contain, channel, receiving three categories. There are spread spectrum, modulation, Gaussian and Rayleigh
SimulationandImplementationofDS-Modem
- 扩频调制解调器的仿真和实现全过程，详细并且可实现-Spread spectrum modem simulation and realization of the entire process in detail and can be realized
xiugaideq
- 在一个通信系统中对信源的扩频，信道的指定概率加错并在接收端解扩，计算其误码率-In a communication system in the source of the spread spectrum, channel designated fault probability increases and despreading in the receiver to calculate the BER
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
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
DSSS
- 利用MATLAB实现多用户的扩频通信的发送和接受，程序可以直接跑，不需要改动！-The use of MATLAB implementation of multi-user spread spectrum communication send and receive, the program can be directly run, no changes!
cdma2000_simulink
- cdma2000的系统建模及实现 包括信源编码，信道编码，扩频，调制。-cdma2000 System Modeling and implementation
时反直扩
- 被动时间反转镜和直接扩频相结合，有效克服多途环境。(The combination of passive time reversal mirror and direct spread spectrum can overcome multipath environment effectively.)
新技术-扩频-跳频-OFDM-MATLAB仿真程序
- 主要包括扩频、多元扩频、跳频、正交多载波调制OFDM系统的MATLAB仿真(Including MATLAB simulation, spread spectrum and frequency hopping spread spectrum multiple orthogonal multi carrier modulation OFDM system)
直接序列扩频系统仿真
- 建立了直接序列扩频系统的matlab仿真模型，在信道中存在高斯白噪声和干扰的情况下，对系统的在不同扩频增益下的误码率性能进行了仿真及分析，分析了扩频码的自相关性、误码率、性噪比。(A matlab simulation model of the direct sequence spread spectrum system, the existence of Gauss white noise and interference in the channel under the condition