constructW

说明：  语音增强的谱减法算法实现，要有一个wav格式的声音文件(Spectral subtraction speech enhancement algorithm, there must be a wav sound file format)

计算机仿真程序例子，包含多个基本程序，可帮助我们更好的学习matlab(examples of computer simulation program, includes a number of basic procedures that will help us to better learning Matlab)

数学建模：自动车床数学建模：自动车床数学建模：自动车床数学建模：自动车床数学建模：自动车床数学建模：自动车床(Mathematical modeling: automatic lathes)

锁相环就是锁定相位的环路。学过自动控制原理的人都知道，这是一种典型的反馈控制电路，利用外部输入的参考信号控制环路内部振荡信号的频率和相位，实现输出信号频率对输入信号频率的自动跟踪，一般用于闭环跟踪电路。(Locked loop (phase), as the name implies, is the lock phase of the loop. Principle of automatic control of the people know, this is a typical feedback control circuit, the external input reference signal control the frequency and the phase of the oscillation signal inside the loop, the frequency of the output signal of the input signal frequency automatic tracking, generally used for closed-loop tracking circuit. )

灰色预测[GM(1,1) ]MATLAB程序(已经测试运行)(Gray prediction [GM (1,1)] MATLAB program (test run))

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。(Software design and simulation using matlab the following wireless communication systems. A single analog audio signal source. Analog modulation is ASK. Channel multi-path channel (simulation 2 diameter), channel noise is additive white Gaussian noise. The use of coherent demodulation receiver. Draw the output of the demodulation performance curve and the point of the relationship between signal to noise ratio SNR.)

直接序列扩频，利用MATLAB程序实现对原信号的扩频与解扩，有利于信号的抗干扰传输(Direct sequence spread spectrum, use the MATLAB program for spreading and despreading the original signal, the signal interference in favor of transmission)

matlab的学习教程，对于新上手的人来说，不错(matlab tutorials for new people to get started, good)

第04讲MATLAB语言基础-数字图像处理课件-matlab语言基础，很适合做图像如理入门使用，(Digital image processing based on matlab language courseware), such as introduction to use, very suitable for image series 1)

this is a vehicle detection algo, all the files are well explained in the rar file