theta_geshi

comments and thoughts

This is a matlab program for huffman coding using images

Naive Bayes algorithm for data mining

ml frquncy cpstrl cffcient ung gmmodl

编程实现基于8×8子块的DCT图像变换，基于JPEG量化矩阵的量化与反量化，基于8×8子块DCT的图像重建；以一幅512×512、8比特/象素的图像为实验对象，计算重建后的PSNR。(Programming based on 8 × 8 sub-block of the DCT image transform, quantization matrix based on the JPEG quantization and anti-quantitative, based on the 8 × 8 sub-block DCT of the image reconstruction to a 512 × 512,8 bits/as Su-image for the experiment, re-calculation of PSNR.)

a neural network,Recursive SOM and Marge SOM ,can be use for time series and data fit.(a neural network, Recursive Marge SOM and SOM. can be use for time series data and fit.)

PI tuning for DVR control

具有微分先行的PID控制方法，可以设置M参数查看控制效果（M=1为微分先行的控制效果）。(PID control with derivative first method, you can see the control effect parameters set M (M = 1 for the first derivative of the control effect).)

傅立叶拟合，可以选择拟合的最高频率，经测试，运行良好(Fourier fitting, you can choose the highest frequency of fitting has been tested and runs well)

设计一个模拟信号（几个不同频率简谐信号之和，再加一个白噪声） 用不同的采样频率把信号离散（满足和不满足采样定理）， 画出信号波形； 分别作信号的谱分析（幅值）；对比采样频率的影响； 选用不同窗函数对同一个信号作谱分析，比较分析。(signal process using matlab)