duffingcheckfrequncy

说明：  永磁同步电机矢量控制，其中包括仿真电机的参数和具体的数据，适合于中惯量电机高精度控制。(PMSM vector control, including the simulation of the electrical parameters and specific data. for inertia at the high precision motor control.)

The code introduces postcoding technique in ofdm system that results in a much less complex mechanism and provide similar result as are obtained with precoded system. In this technique the coding part is done after the ifft block that is initially the data is converted to frequency domain n then coding is introduced.

关于DFT调制多相综合滤波器组收发器的设计程序 （实部程序）(DFT modulated polyphase filter bank transceiver design program（real part）)

Duffing系统分岔图与Poincare截面绘制(Duffing bifurcation diagram and Poincare section drawing)

LDPC码既低密度奇偶校验码（Low Density Parity Check Code，LDPC），它由Robert G.Gallager博士于1963年提出的一类具有稀疏校验矩阵的线性分组码，不仅有逼近Shannon限的良好性能，而且译码复杂度较低, 结构灵活，是近年信道编码领域的研究热点，目前已广泛应用于深空通信、光纤通信、卫星数字视频和音频广播等领域。LDPC码已成为第四代通信系统(4G) (LDPC codes BER simulation under AWGN channel. MacKay-Neal based LDPC matrix. Message encoding uses sparse LU decomposition. There are 4 choices of decoder: hard-decision/bit-flip decoder, probability-domain SPA decoder, log-domain SPA decoder, and simplified log-domain SPA decoder.)

CODE FOR COMPUTATIONAL FRACTAL. YOU CAN USE IN MATLAB SOFTWARE.

使用灰度共生矩阵提取纹理信息，程序为一个exe的应用方式(Extract texture information using gray level co-occurrence matrix)

这是PSO粒子群算法比较的常用25个函数的matlab源代码。(This is a comparison of particle swarm optimization PSO used 25 functions matlab source code.)

说明：  神经网络理论与Matlab7实现,与《神经网络理论>书籍配套(Neural Network Theory and Matlab7 realized, with the &quot neural network theory&quot book package)

无线协同通信中中继选择算法的几种仿真程序，附有配套的论文。(Wireless cooperative communication relay selection algorithm several simulation program, accompanied by supporting papers.)