5.--PSK-Demodulation-(Part-1)

说明：  5、绘制散点图。 对发射和接收信号利用scatterplot函数可显示信号星座图的样子及噪声对信号造成的失真程度。在该图中，横轴代表了信号的同相分量而纵轴代表了正交分量。下面的代码还利用了 对接收信号利用modem.deqammod对象的demodulate方法进行解调。解调结果为包含0到15之间整数的列向量。 (5, draw a scatter plot. The transmitted and received signals can be displayed using a function of the degree of distortion scatterplot like and noise signals caused by the signal constellation of FIG. In this figure, the horizontal axis represents the in-phase component signal and the vertical axis represents the quadrature component. The following code is also used to demodulate the received signal using the method of demodulating modem.deqammod object. Demodulation result is an integer from 0 to 15 comprising a column vector.)

LDPC码的经典的译码程序：BP译码算法(Classic LDPC code decoding procedure: BP decoding algorithm)

这个程序即可以读取XMl文件并转换成matlab结构体，也可以把matlab结构体转换成xml格式存放。xml是最被看好的数据存储方式，xml格式的通用性减轻了大家编写格式转换代码的痛苦。(This process that can read XML files and converted into matlab structure can also be put into matlab structure xml format. xml are the most promising way of data storage, xml format, reducing the U.S. generic format conversion code preparation suffering.)

无线通信信道仿真模型，包括加性高斯白噪声信道和衰落信道。(wireless communication channel simulation model, include additive white Gaussian noise channel and fading channel)

这是用simlink搭建的一个滤波器的框图，希望能给大家带来帮助(this is a map of filter , i think it is useful for you to )

仿真分析：基于MUSIC算法和CAPON算法的仿真，给出了仿真图与仿真结果(Simulation Analysis: CAPON algorithm based on MUSIC algorithm and the simulation, the simulation diagram and simulation results)

this is adc file for test

瑞利信道下采用256QAM调制时，四节点单中继网络结合分层调制的误码率(hierarchical modulation BER with 256QAMmodulation)

啁啾光栅matlab仿真程序，方便学习光栅特性(Chirped grating matlab simulation program to facilitate the learning Grating)

ofdm系统仿真用QAM调制的，有信号传输后的频谱图(ofdm simulation using QAM modulation)