Active-contour-models-snake

语音信号的iir滤波器设计,从带有噪音的信号中提取原始声音.目前，MP3播放器一般功率放大器的工作频率范围就是这个范围。但是大部分有用的和可理解的信息的频率在200到3500Hz之间。所以我们可以在这个范围间滤波，达到使声音可理解的要求。现将数字滤波器的设计指标设为通带截止频率fb=600HZ,阻带频率fc=1200HZ,通带波纹Ap=1dB，阻带波纹As=40dB,要求确定H(z)。(design of the iir filter, get the original voice without noise)

说明：  小波变换的matlab程序，包括离散小波变换，多尺度变换，小波包分析，小波用于图像压缩、水印、去噪(Matlab wavelet transform procedures, including the discrete wavelet transform, multi-scale transform, wavelet packet analysis, wavelet image compression, watermarking, denoising)

这是一个可以实现光学微环谐振滤波器的FSR加倍的程序。(This is a process which can double the FSR of optical micro-ring resonator filter.)

theoretical and simulated BER are in good agreement in AWGN channel the result can be extended to general M-QAM using slight modification .

说明：  微分方程数值解，相图，轨线图，等高线图，等(Differential equations, phase diagram, rail lines, contour maps, etc.)

说明：  基于三对角矩阵LU分解的追赶法，编写的追赶法分解五对角矩阵，并在此基础上解以五对角为系数矩阵的线性方程组。(Tridiagonal matrix based on LU decomposition method to catch up, catch up with the preparation of the Decomposition of five pairs of diagonal matrix, and on this basis for the solution to five diagonal coefficient matrix of linear equations.)

智能天线上行链路的MUSIC算法仿真程序,窄带信号,高斯白噪声环境(smart antenna uplink MUSIC algorithm simulation program, narrowband signals, white Gaussian noise environment)

此程序对协作通信的中继选择和功率控制，采用了蚁群算法。(The program of collaborative communication relay selection and power control, using the ant colony algorithm.)

基于matlab的特征点自动提取以及匹配，结合机器人三维空间的定位，实现机械手的定位抓取(Matlab-based feature point extraction and automatic matching, combined with three-dimensional space robot localization, achieve positioning robot crawl)

此为《MATLAB图像处理手册》的开源代码，希望大家共同提高。(This is the MATLAB Image Processing Handbook, the source code, we hope to improve together.)