tiaopin_maichongxinhao-

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. )

产生正交的AM信号和FM信号，信号为复信号，含有I路和Q路，FM信号可设置调制指数变量，运行后可看到仿真时域及其频谱图(Generate quadrature AM signal and FM signal, the signal for the complex signal containing I and Q Road Road, FM signal modulation index variable can be set to run after seeing the time-domain simulation and spectrum)

Get cpu memory disk usage by console application windows x64

运用最小一次范数法对含粗差的实验数据进行抗差估计(Using a minimum norm method with experimental data for gross errors in Robust Estimation)

这个粒子群算法使用matlab语言编写出来的，可以解决带约束的粒子群算法问题，可以很方便的把问题得到解决(the optimization of constraied pso matlab programmes)

用遗传算法求解函数最优问题，注释详细，过程详细，值得参考和学习，稍微修改能用于解答其他问题！(Function using genetic algorithm optimization problem, detailed notes, the process in detail, it is worth reference and learning, a slight modification can be used to answer other questions!)

（包含了规划问题、数据分析、解方程、绘图、插值与拟合的matlab源程序及相关说明）((Includes planning, data analysis, solving equations, plotting, interpolation and fitting matlab source code and instructions))

MATLAB Simulation of OFDM System (MATLAB Simulation of OFDM System)

主要是研究信号、系统与系统响应，用matlab实现，对连续信号的采样以及卷积定理的验证以及相关的幅频特性等(is to study signal system and the system response using Matlab realized, the continuous signal sampling and convolution theorem certification and the associated frequency characteristics)

leach protocol of wireless sensor network