spread-spectrum

灰度拉伸是分段进行线性变换，对红色，绿色，蓝色三分量进行统一的分段线性变换，以增强图像对比度 (Gray-scale stretch is sub-linear transformation of the red, green, blue three-component unified piecewise linear transformation, to enhance the image contrast)

k-means均值算法matlab语言写的，很实用的源码(k-means means algorithm matlab language, very useful source)

（1）编程建立Gold序列，仿真Gold序列的波形； （2）仿真Gold序列的自相关和互相关特性。 （3）编程仿真直接扩频通信系统模型，画出扩频前后信号波形及频谱。((1) programming Gold sequence and simulating the waveform of Gold sequence; (2) the autocorrelation and cross correlation characteristics of the simulated Gold sequences. (3) programming direct spread spectrum communication system model, draw the signal spectrum and spectrum before and after spread spectrum.)

此程序是利用matlab Gui进行编写的对txt的读取与保存，客观形象，是以后进行复杂编程的基础，对新学者有着较大的帮助！(This program is written using matlab Gui to read txt and preservation of the objective image, is the basis for future complex programming, the new scholars with greater help!)

本实验是IIR滤波器设计-巴特沃斯滤波器设计，并通过实例检验得到了很好的滤波效果(IIR filter design, Butterworth filter has been designed and tested by example with excellent results)

迭代学习控制的MATLAB语言程序，实现迭代开控制。反复迭代30次，设置步长(Iterative Learning Control of the MATLAB language program, to achieve iterative open control. Iteratively 30 times, set the step size)

这是MATLAB图形界面设计（英文原版），有需要的下下来看吧(MATLAB graphical interface design (English original), there is a need in the next down and see)

显示一个正弦波振幅、频率、和相位的MATLAB源代码，为信号处理专业的学生提供帮助。( MATLAB script creating a sine waves Illustrate waveform amplitude, frequency, phase time domain, frequency domain)

通过MATLAB程序，进行语音信号处理里面的基于MMSE的谱减法增强处理程序，程序消除噪声的效果是现有算法的3dB，特别的对于 RalzCK格式和 OfkGJZu 格式的语音处理效果很好。(By MATLAB program for speech signal processing inside the MMSE-based spectral subtraction enhancement program, the program to eliminate the effect of noise existing algorithms 3dB, special effects for speech processing RalzCK format and OfkGJZu format well.)

说明：  从电脑中选择一个图片，本程序可对图片完成类型转换，几何运算，代数运算（平均法降噪和减数运算），傅里叶变换，图像增强（包括灰度值变换，直方图均衡化，邻域平均法和中值滤波波法），图像复原，图像分割等功能。(Choose a picture from the computer, this program can complete type conversion, geometric operation, algebraic operation (average noise reduction and reduction), Fourier transform, image enhancement (including gray value transformation, histogram equalization, neighborhood averaging and median filtering wave method), image restoration, image segmentation and other functions.)