work

对利用录音设备对手机、电话等按键式密码输入终端进录音盗取银行卡密码的不法行为进行技术分析，利用MATLAB软件编程对按键式密码输入终端的按键音进行音频分析，基于短时能量和过零率对所采集的音频文件进行端点检测，提取出单个拨号音，然后对处理后的音频进行频谱分析、对比，从而识别按键式密码输入终端的按键音。(On the use of recording equipment on the phone, telephone touchtone input terminal password into the recording steal bank card passwords wrongful conduct technical analysis using MATLAB software programming for touch-tone touchtone password input terminal for audio analysis, based on short-term energy and zero-crossing rate of the acquired endpoint detection audio files, extract single dial tone, and then processed audio spectrum analysis, comparison, to identify key tone touchtone password input terminal.)

a very good method for linear regression is described in a very simple matlab program

数字信号处理及其matlab实现，绝对好资料，实用，方便新人学习(Matlab digital signal processing and its realization)

说明：  粒子滤波，用于对模型数据进行寿命衰退的预测，或者用于衰退模型的饿跟踪预测等(particle filter)

here are all the turbo codes in matlab where to the final of the simulation make a comparation of the S/N of each one of the models

This is a matlab code for geostatictics

不用自带直方图函数画直方图以及直方图均衡处理图像(Don t bring histogram function painting histogram and histogram equalization images)

优化问题 线性、非线性 等 MATLAB程序 想看看的，可以看看优化问题的，看看(Optimization of linear, nonlinear, MATLAB program)

求卷积及两个序列的互相关函数，或一个序列的自相关函数；(for convolution and two sequences of cross-correlation function, or a series of auto-correlation function;)

Computes solution of difference equations