lab_intro

扩频通信中PN码同步仿真实验，中间无任何错误，可直接使用(can use)

this file is implementing CLOCK recovery using DD method in matlab. This is a mfile. The signal shape is 4PAM

自定义风格的SegmentedControl，IOS编程学习源码，很好的参考资料。(A custom style SegmentedControl, learning IOS programming source code, a good reference.)

求满足巴特沃斯模拟低通的最低结束以及滤波器系统函数及其几点位置(To meet the butterworth lowest end and analog low-pass filter system function and its several location)

说明：  利用matlab的gui设计的带有输入和输出功能的界面图形，实现等距线可视性很强，自己独立编写的数据和图形，学习非常值得,实现pca bp和svm压缩图像，matlab语言(Using GUI of MATLAB to design interface graphics with input and output functions, realizing the visibility of isometric line is very strong, and it is very worthwhile to study the data and graphics written independently, realizing PCA BP and SVM compressed images, MATLAB language)

说明：  此代码为计算离散随机变量的熵、联合熵、条件熵、互信息的 Matlab 程序(This code is a matlab program for calculating entropy, joint entropy, conditional entropy and mutual information of discrete random variables)

SVD based Image Watermarking Scheme

倒立摆主程序用于控制到礼拜的角度位移角速度速度等(Inverted pendulum main program)

信道模型包括模拟多径造成的指数衰减模型、模拟噪声干扰的 AWGN模型、以及频率偏差，主要 Matlab 实现(Channel model including the simulation of multipath caused by the exponential decay model to simulate the noise of the AWGN model, and the frequency deviation, the main Matlab Implementation)

对模糊图像进行还原滤波，包括维纳滤波，拉普拉斯滤波等(Reduction of the fuzzy image filtering, including Wiener filtering, Laplace filtering)