Matlab-meshing-code______Distmesh

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. )

Numerical solution of 2D Poisson equation (Matlab code + comments in Russian)(Numerical solution of 2D Poisson equation (Matlab code+ comments in Russian))

说明：  根据GPS软件接收机的基本原理编写的，卫星捕获到跟踪到解算的完整程序(GPS)

选择输入信号的参数，以及抽样因子，以及采样参数，对信号分别进行上抽样和下抽样，方便非均匀采样的进行。(Select the input signal parameters, and sampling factors, as well as sampling parameters, respectively, on the signal sampling and down sampling, to facilitate the conduct of non-uniform sampling.)

simulation of OFDM using discrete wavelet transform

说明：  文字与拼音字母转换源码输入文字后将拼音字母转换出来(characters and phonetic alphabets source conversion to enter text will change from the phonetic alphabets)

维也纳大学开发的物理层上行链路平台，包括信道编码，码块分段，HARQ等等(The physical layer uplink platform developed at the University of Vienna)

说明：  bellhop模型的到达角估计算法，内置bellhop模型的源程序和到达角估计的环境文件等。(The algorithm of angle of arrival estimation of bellhop model, the source program of built-in bellhop model and the environment file of DOA estimation)

有关PWM设计的一些参考，是用simulink搭建起来的模型(For some reference PWM design is to build up the model with simulink)

很好用的matlab批量修改文件名的程序(The good use matlab bulk modify the file name of the program)