DSP

fit_mix_gaussian - fit parameters for a mixed-gaussian distribution using EM algorithm format: [u,sig,t,iter] = fit_mix_gaussian( X,M ) input: X - input samples, Nx1 vector M - number of gaussians which are assumed to compose the distribution output: u - fitted mean for each gaussian sig - fitted standard deviation for each gaussian t - probability of each gaussian in the complete distribution iter- number of iterations done by the function

此例程可以帮助初学者快速入门，掌握MATLAB的基本知识，熟练MATLAB的基本原理。(This example can help beginners quick start, also grasp the basic knowledge of MATLAB,the basic principle of MATLAB .)

无线通信系统发射端仿真中，脉冲成型滤波器。是一种根升余弦滤波器。(A pulse shaping filter in the wireless communication system. It is a root raised cosine filter.)

语音信号处理中，利用winner滤波器去除干扰噪声，达到语音增强的效果(Speech signal processing, and use filters to remove interference noise winner, to the effect of speech enhancement)

Matlab basic course and implicit plot design

说明：  matlab开发的RBF、BP PID算法，已经过测试(matlab development of RBF, BP PID algorithm has been tested)

添加水印，在图项中添加，matlab，实现图像的保护等等 (Add watermark, add items in the map, matlab, image protection, etc.)

图像的FFT变换和DCT变换的MATLAB代码(Image FFT transform and DCT-MATLAB code)

说明：  matlab光谱预处理之光谱平滑，包括移动平滑及SG平滑(Spectral smoothing of MATLAB spectral pretreatment, including moving smoothing and SG smoothing)

说明：  光子晶体光纤中空气孔分布均匀时，计算光子晶体光纤的模式有效折射率(The effective RI of the mode propagating in PCF)