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这里面有两个程序，两个都是采用4QAM调制。不过个人觉得第一个更容易懂，因为写的很有条理。我改的那个程序就是根据这个来的。 不过在这里面有个问题就是信道系数只能是由高到低，大家可以试试，改成[0.227 0.46 0.688 0.46 0.227]这个是老师给我的仿真中常用的信道系数，这个成为归一化信道，就是系数平方和为1. 第二个程序没有涉及到信道系数，但是这个程序当中，在128个子载波中，前后有32个空载波，这个在OFDM中也是经常用的，这样可以降低误码率。 (And there are two programs, two are based on 4QAM modulation. But personally feel that the first is easier, because the writing is organized. I changed that procedure is based on the past. However, there is a problem in that there is only channel coefficients from high to low, we can try and change into [0.227 0.46 0.688 0.46 0.227] This is the teacher gave me the simulation channel coefficient commonly used, this became normalized channel, is coefficient of the square and is 1. The second program is not related to channel coefficients, but this program which, in the 128 sub-carriers, the before and after the 32 air carriers, the in OFDM is also often used, which can reduce the error rate.)

matlab实用程序百例,这个主要是平时经常用到的一些程序!(matlab utility hundred cases, the principle is often used some of the programs in peacetime!)

自己写的matlab程序，用kay方法进行频率估计，已通过验证。(kay matlab)

gui编程中有用的几个程序段，值得借鉴学习学习(Several useful gui programming block, is worth learning learn)

耳蜗滤波器工具代码，此为滤波器组仿真工具程序，内涵详细注解(COCHLEAR Filter)

说明：  在matlab中实现快速简便画圆的一种方法，希望对朋友们有帮助~(Quick picture circle)

说明：  经典的EFK雷达测量模型 构造数据为雷达采样数据，距离、俯仰角、方向角。 假设目标匀速直线运动，CV模型 状态变量用x，y，z，以及各自的导数 (EFK classic measurements of radar data for modeling radar sampling data, distance, pitch angle, direction angle. Goal of uniform linear motion assumption, CV model with state variables x, y, z, and their respective derivatives)

对信号加窗，进行短时傅里叶变换，输出一个结构组，包含时间和频谱幅度(Signal windowed short time Fourier transform, and output a structure that contains the time and spectral amplitude)

电力系统风险评估基于30节点系统的仿真程序，已仿真(System Risk Assessment Based on 30 node power system simulation program, has simulation)

MATLAB混合编程想把matlab强大的功能用在自己的工程实践中吗这是本不错的混合编程的书(Hybrid Programming MATLAB want matlab powerful in their own practice, it works this is a mixture of good programming book)