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程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
P0308：图像的自适应魏纳滤波
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This a software runing on the matlab, it is used in the channel coding simulation.
It include DVB-S2 LDPC, Covolution turbo, and block turbo code, You can choose which channel coding to run.
it run the encoder and add white noise in the channel,
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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
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一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，采用（7，4）循环码对信源做信道编码，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，再对信号进行信道解码，画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
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用matlab仿真高斯白噪声对QPSK的影响。供大家参考。-Matlab simulation with Gaussian white noise of the impact of QPSK. For your reference.
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In this project we analyze and design the minimum mean-square error (MMSE) multiuser receiver for uniformly quantized synchronous code division multiple access (CDMA) signals in additive white Gaussian noise (AWGN) channels.This project is mainly bas
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QPSK系统在无线通信信道中的仿真,通过对有若干条（大于2条）路径的无线多径衰落信道中的QPSK系统进行误码率性能仿真，并在与理想的高斯加性白噪声信道中同样系统的BER性能进行比较，利用SA方法给出本仿真模型的仿真结果-QPSK system in the wireless communications channel simulation, through a number of articles (more than 2) the path of wireless multi-path fa
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用MATLAB编写程序实现BPSK的调制与解调过程，并且为了模拟数字通信系统过程，在调制后加入高斯白噪声。-MATLAB program used to prepare the BPSK modulation and demodulation process, and in order to simulate the process of digital communication system, in the modulated Gaussian white noise after.
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利用卷积编码和BPSK调制方式，关于高斯白噪声信道下信噪比与比特误码率关系的Simulink仿真-The use of convolutional coding and BPSK modulation on the Gaussian white noise channel ,the relationship between SNR and bit error rate using Simulink simulation
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一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-ba
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QAM调制和解调的matlab实现，瑞利信道，高斯白噪声-QAM modulation and demodulation matlab implementation, Rayleigh channel, Gaussian white noise
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Cooperative communication_power control
a) Generate random binary sequence of +1’s and -1’s.
(b) Given different Power to the source and the relay as well
(c) Multiply the symbols with the channel and then add white Gaussian noise.
(d) At
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在matlab环境下，高斯白噪声信道下接收端对发送信号的恢复效果的验证-In the matlab environment, Gaussian white noise channel receiver for sending signals to resume the verification results
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在matlab环境下，高斯白噪声信道下原信号的误码率特性的仿真代码-In the matlab environment, Gaussian white noise channel bit error rate characteristics of the original signal simulation code for
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它是基于matlab的CDMA通信仿真，包含白噪声加入的整个物理链路过程，还有瑞利衰落分析、信噪比分析和误码率分析。
-It is based on the matlab CDMA communication simulation, including white noise to join the whole process of physical link, and the Rayleigh fading analysis, signal-to-noise ratio analysis
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利用matlab软件设计并仿真下面的无线通信系统。模拟信源为单音频信号。模拟调制方式为ASK。信道为多径信道（仿真中2径），信道中噪声为加性高斯白噪声。采用相干解调接收。画出了解调器输出端性能曲线与点信噪比SNR的关系。(Matlab software is used to design and simulate the following wireless communication systems. The analog source is a single tone signal. The
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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
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利用MATLAB软件对OFDM系统做出仿真。仿真中采用QPSK调制技术，并加入高斯白噪声，最终得到QPSK星座映射图以及BER曲线图。由仿真结果可以看出，OFDM在高斯信道具有良好的抗噪声性能，误码率较低。(MATLAB software is used to simulate the OFDM system. In the simulation, QPSK modulation technology is used, and Gauss white noise is added, and th
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IS95前向链路系统:此函数用于IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模块。
仿真环境: 加性高斯白噪声信道.(IS95 forward link system: this function is used for the simulation of IS-95 forward link system, including spread spectrum modulation, matched filtering, RAKE reception and
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QPSK调制的matlab仿真，信道为高斯白噪声信道。(The MATLAB of QPSK modulation is simulated, and the channel is Gauss white noise channel.)
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