frcg

This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. (This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious. )

用于matlab环境下读取指定目录下的图像(Environment for matlab to read the image under the specified directory)

说明：  提取线性预测倒谱系数的matlab程序，使用的是自相关法(Linear prediction cepstral coefficients extracted the matlab program, using the autocorrelation)

离散PID控制器的MATLAB/simulink仿真。(MATLAB/simulink simulation of discrete PID controller.)

此算法是基于matlab的MFCC特征提取算法，其中包括了分帧、归一化等步骤和代码，非常好用，结果是24维的向量(This algorithm is based on MFCC feature extraction algorithm matlab, including the framing, normalization and other steps and code, very easy to use, the result is 24-dimensional vector)

optimization algorithms source code

双向DC，plecs仿真，带闭环控制，可以联合仿真(Bidirectional DCplecs simulation)

说明：  柴油机MATLAB/simulink仿真模型。(Diesel engine Matlab / Simulink simulation model.)

some pdf files and matlab code related

说明：  小波分解与重构源代码，其中包括图形，很简洁，望能够提供帮助(Wavelet decomposition and reconstruction of the source code)