wzhuigongji

说明：  此程序用来瑞利衰落信道仿真,用于无线环境，希望能有所帮助(This procedure used to Rayleigh fading channel simulation, used in wireless environment, hoping to be helpful)

小规模OPF计算程序（by FX），中间给出14节点测试系统，缺点计算时间较长（初学者想下点高手的源代码学习学习）(Small-scale OPF calculation program (by FX), in the middle gives a 14-node test system, the disadvantage of longer computing time (beginners would like to point master source code to learn from))

This paper presents a novel algorithm of hiding secret messages by applying mathematical lemmas and information theory. The proposed algorithm can hide more information with acceptable embedded rate and achieves requirements of information hiding algorithm and simply information extracting. The main idea is applying modern algebra to solve the information hiding problem in multimedia. In order to prevent some attacks on stganography, hidden initial bits of image data pixels are chosen randomly. The extracted information are achieved without the reference of the original image and extracted keys. The experiment results show that our approach is effective and reliable.

说明：  基于贝叶斯分类算法的图像阈值分割 迭代最佳阈值分割算法 matlab7.0环境运行无误(Bayesian classification algorithm based on image threshold segmentation iterative threshold segmentation algorithm for the best environment to run correctly matlab7.0)

non-parametric identification

SVPWM technique converter..all types

通过迭代法计算方同轴线的电势分布，进而求得内导体电流，最终计算出同轴线的阻抗(Iterative method to calculate the square coaxial electric potential distribution, and thus obtain the inner conductor current, the final calculation of the impedance of the coaxial)

该程序将常用的线性码、循环码、汉明码、BCH码等，配上常用的二进制相键控调制BPSK搭建成仿真系统，对它们的传输特性进行了仿真！(The program commonly used linear codes, cyclic codes, Hamming, BCH codes, coupled with the commonly used binary phase shift keying modulation BPSK built into the simulation system for their transmission characteristics are simulated!)

示波器图像处理软件，可以完成图像简单的处理步骤，基本满足初学者的要求。(Oscilloscope image processing software, can complete the simple image processing steps, basic meet the requirements of beginners.)

dq坐标系下的异步电动机仿真建模分析，三相异步电动机的动态数学模型是一个高阶、非线性、强耦合的多变量系统(Simulation modeling analysis of asynchronous motor in dq coordinate system)