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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. )

同态滤波MATLAB code for beginners that performs Homomorphic filtering, Using Butterworth High Pass Filter for performing filtering.( Copy the files in your work space Type "ho_filter" to see the results)

本资料包含了系统的matlab建模用算法(This information includes system modeling with matlab algorithm)

HVDC Light连续时间状态空间模型的Matlab仿真(HVDC Light continuous time state space model of the Matlab simulation)

B-Spline Surface Least-Squares Fitting of both Positions and Normals.

用于电力系统可靠性分析的rbts6节点测试系统case文件（基于matpower平台）(Rbts test case file system for power system reliability analysis (based matpower platform))

空间谱估计（MUSIC）算法的MATLAB仿真分析(Spatial spectrum estimation (MUSIC) algorithm MATLAB simulation analysis)

沙堆的元胞自动 元胞自动机 matlab编写(Sand of Cellular Automata Cellular Automata write matlab)

小波去噪程序，根据信号的频域特征对信号进行小波分解，然后去噪(program for artifact removal, this function is obtained based on the frequency feature of signal.)

相对复杂环境下网球的识别，完全个人想出的处理方式(Tennis identify relatively complex environment, come up with entirely personal approach)