ofdm-(2)

说明：  实现QPSK的仿真，画出误码率和信噪比的曲线(QPSK simulation to achieve, draw the curve of error rate and SNR)

粒子群算法，也称粒子群优化算法（Particle Swarm Optimization），缩写为 PSO， 是近年来发展起来的一种新的进化算法(Evolutionary Algorithm - EA)。(For each particle ____Initialize particle END Do ____For each particle ________Calculate fitness value ________If the fitness value is better than the best fitness value (pBest) in history ____________set current value as the new pBest ____End ____Choose the particle with the best fitness value of all the particles as the gBest ____For each particle ________Calculate particle velocity according equation (a) ________Update particle position according equation (b) ____End)

Oaxes creates a set of axis lines through a specified origin point. Oaxes supports both 2D and 3D views, ticks and tick labels, axis labels, log-scaled axes, and has a plethora of properties, analogous to normal axes properties, that give control over the oaxes object s appearance.

通过matlab程序实现，对YUV视频序列进行播放(By matlab program, YUV video sequence for playback)

钟益林《常微分方程及其Maple，MATLAB求解》光盘附件，为本书的源码。(Zhong Yilin, "Ordinary Differential Equations and Maple, MATLAB solve " CD-ROM attachment for the book s source code. )

利用MATLAB的SIMULINK进行仿真的前馈控制系统仿真源码(The simulation using MATLAB SIMULINK feedforward control system simulation source)

分组法求点方向图.若要求其他的指纹图像的点方向图,将“fp=imread( finger.tif ) 读入指纹图象”里的imread的参数修改成所需要的图像文件名。图像准备好后，在matlab中直接运行即可。(Packet Method pattern requires fingerprint image point pattern, fp = imread (' finger.tif to' ) reads the fingerprint image " the imread parameters modify the image files into the required names. The image is ready, you can run directly in matlab.)

说明：  正弦波方波通过低通滤波器，显示时域频域波形，自相关函数，功率谱密度(The sine wave and square wave pass through the low-pass filter to display the time-domain waveform, frequency domain waveform, autocorrelation function and power spectral density)

ss4 电力机车的完整仿真模型 可用于铁道电气化电力机车的受流及过电压仿真分析(ss4 complete simulation model of the electric locomotive can be used for the simulation analysis of railway electrification electric locomotives by the current and over voltage)

永磁同步电机弱磁调速系统的仿真.在矢量控制的基础上进行改进，采用弱磁调速，可作为参考.(Permanent magnet synchronous motor speed control system simulation weakening in vector control on the basis of improved, using weak magnetic speed, can be used as reference.)