momichangeyihaoyundongguiji

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. )

本资料给出了‘基于重复控制补偿的PID控制’的matlab仿真程序和相应的simulink仿真，以供大家学习和参考(This information gives matlab program of the PID control based on compensation of repetitive control,and alse gives the corresponding simulink simulation model for all to study .)

tutorial on fuzzy logic

光伏电池的仿真模型，实现空气温度与光照强度在不同条件下光伏电池的输出电流(Photovoltaic cells of the simulation model, air temperature and light intensity under different conditions, the output current of the photovoltaic cells)

逆变器具有灵活、高效的特点，是新能源并网的主要接口。当多个逆变器连接到电网的同一个公共连接点时，逆变器非理想的电源特性，使得逆变器之间、逆变器与电网之间存在的谐波交互作用可能引发谐振， 使系统出现过电压、 过电流现象影响电网的电能质量，甚至威胁系统的安全稳定运行(Inverter is flexible and efficient, and it is the main interface of new energy integration. When multiple inverters are connected to the same common connection point of the power grid, the inverter is not ideal. The harmonic interaction between the inverters, the inverter and the grid may cause resonance, which causes the overvoltage and overcurrent to affect the power quality of the power grid and even threatens the safety of the system. stable operation)

非线性动力学、分岔 Matlab 程序实现，绘出系统状态变量随参数变化分岔图，绘图参数对应的系统各周期及混沌状态的时间历程图、相轨迹图、Poincare映射图(Nonlinear dynamics and bifurcation are realized by MATLAB program. The bifurcation diagram of system state variable with parameter variation is drawn. The time history diagram, phase trajectory diagram and Poincare map of each period and chaos state corresponding to system parameters are drawn.)

说明：  这是一个在matlab中实现灰度图像二值化的小程序(This is a gray image is implemented in the matlab binary applet)

一个经典的LEACH协议代码，十分有用 希望能给您帮助(A classic LEACH protocol code, very useful to want to give you help LEACH )

扩展卡尔曼滤波工具箱，已经用此程序成功的做过研究(Extended Kalman filter toolbox, has been successful with this program has done research, )

SAS统计分析 沉其君主编 详细说明了怎样使用sas软件来做数学分析,很好的资料哦，可以很快对SAS入手(Shen monarch editor SAS statistical analysis described in detail how to use the software to do mathematical analysis sas, good information Oh, you can quickly start on SAS)