chap4

Visually select image using a GUI

LDPC低密度奇偶校验码的演示程序包，适合初学者使用(LDPC LDPC codes demo packages for beginners)

Find the theorical capacity of an optical comb sistem

利用MATLAB软件编写的序列二次规划算法程序，包括二次规划子程序的编写，用于求解非线性函数的最小值问题。(Using MATLAB software written in sequential quadratic programming algorithm program, including the preparation of quadratic programming routines for solving nonlinear function of the minimum problem.)

intelligent electronic device

能提取matlab的figure文件的x,y轴数据 非常好用！ 网上收集的！(Matlab to extract the figure documents x, y-axis data is very easy to use! Online collection!)

matlab数值计算，入门基础，绝对好用(matlab numerical calculation, entry-foundation, absolutely easy to use)

matlab实现的一个扩展卡尔曼滤波程序，可以用于目标跟踪领域。(matlab implementation of a Kalman filtering process can be used for target tracking.)

工程最优化 共轭梯度法求解wood函数~！！！！(cauchy)

MVDR谱估计，用于噪声估计，在手机麦克风降噪上有很广的应用(MVDR spectral estimation for noise estimation, noise reduction microphone on the phone has a very broad application)