zero-crossing

说明：  辨识信号的幅值、相位、频率；参数估计；低频振荡(Identification of the amplitude, phase, frequency of the signal; parameter estimation; low frequency oscillation)

lingdo软件的基本使用方法。有详细的例子以及解释，帮助我们快速的掌握这个数学软件(lingdo the basic use of software. Detailed examples and explanations to help us to quickly grasp the mathematical software)

1. Consider the FIR system described by H(z) = 1/16(-1 + 9z--2 + 16z-3 + 9z--4 - z-6), and plot the pole-zero locations in the z-plane.(1. Consider the FIR system described by H(z) = 1/16(-1+ 9z--2+ 16z-3+ 9z--4- z-6), and plot the pole-zero locations in the z-plane.)

Steerable高斯图像滤波器，非常不错 在国外网站上找到的，可以学习 (Steerable Gaussian filter images, very good abroad found on the site, we can learn from)

各种人脸识别的matlab程序，改动后可以跑得通。根据自己的需要进行选择。(Various face recognition matlab program, changes can run through. Choose according to their needs.)

对肌电信号中的有用信号的提取，将无用信号幅度变为0.(Useful for EMG signal extraction in the unwanted signal amplitude becomes 0.)

Pitch Determination Algorithm(Extract pitch of speech signal based on subharmonic-to-harmonic ratio)

说明：  该程序是基于MATLAB的磁悬浮控制系统的离散控制算法实现程序(The program is based on discrete control algorithm based on MATLAB magnetic levitation control system to achieve program)

xor problem with matlab

利用人脸的灰度值的不同可以高效识别人脸区域以及定位的功能，以及可以识别非人脸(The use of human faces of different gray value can be efficient to identify human faces as well as the positioning function of the region, as well as to identify non-human face)