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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. )

说明：  产生线性调频信号，Matlab仿真实现雷达线性调频信号，并表现出线性调频信号的时域图和幅频、相频图(LFM signal generation, Matlab simulation of radar chirp signal, and the performance of a linear FM signal in time domain and amplitude frequency diagram, phase-frequency diagram)

说明：  使用PCA算法进行基于数据的故障诊断的程序(Data - based fault diagnosis program using PCA algorithm)

说明：  在matlab中实现高斯序列，三角序列，反三角序列等，分析其频谱特性(In matlab to achieve Gaussian sequence, triangular series, the anti-triangular sequence and so on, to analyze its spectrum characteristics)

关于水轮机主轴系统振动的有限元计算程序，用matlab编写(Finite element program)

this folder contains a matlab code for wmr coding.

single phase converter RLE load

wimax-mimo.alamouti-ofdm仿真程序，内附详细使用说明。(wimax-mimo.alamouti-ofdm simulation program, containing detailed instructions.)

说明：  MATLAB编程（英文影印版第二版），老师给我们推荐的一本书，觉得不错，发给大家。(MATLAB programming (Degowin 2nd edition), we recommend to the teachers of a book, think it's good, to everyone.)

Filtering and Noise Adding Tool - Compiled for CygWin , Executable under Windows