URG04

arnold加密算法的matlab实现，arnold加密算法的matlab实现(arnold encryption algorithm matlab implementation)

以12脉波整流电路为研究对象，有效降低网侧电流的谐波畸变，其主要原因在于所采用的移相变压器，能过它可使各6脉波二极管整流器产生的低次谐波相互抵消。利用Matlab—Simulink建立模型对其进行仿真，并对其产生谐波电流进行分析和计算，阐述了其消谐原理。这种整流电路采用两个6脉波二极管整流器进行串联，功率因数较高，提高了直流电压的输出能力，对减少电网中的谐波干扰十分有效，可以有效地消除钢厂电力系统中较高次数的谐波。(Low-order harmonics with 12 pulse rectifier circuit for the study, effectively reducing line current harmonic distortion, mainly due to phase-shifting transformer used, it can make each six-pulse diode rectifier generated offset each other . Using Matlab-Simulink simulation modeling them, and analyze and calculate their produce harmonic currents, described its harmonic elimination principle. This rectifier circuit uses two 6-pulse rectifier diode in series, high power factor, increase the output capacity of the DC voltage to reduce power grid harmonic interference is very effective, steel power system can effectively eliminate high the number of harmonics. )

单摆的运动仿真，可以求解小球的速度及角速度，考虑空气阻力对于小球速度的影响(Pendulum motion simulation, can solve the speed and angular velocity of the ball, air resistance into account the impact speed for the ball)

car suspension 4-D.O.F

这个matlab程序实现了基于一种采用判别方法训练的多尺度和可变形的物体检测模型的目标检测算法，算法可参考如下两篇论文 ([1] P. Felzenszwalb, D. McAllester, D. Ramanan A Discriminatively Trained, Multiscale, Deformable Part Model Proceedings of the IEEE CVPR 2008 [2] P. Felzenszwalb, R. Girshick, D. McAllester, D. Ramanan Discriminatively Trained Mixtures of Deformable Part Models PASCAL VOC Challenge 2008 )

matlab曲线拟合工具箱使用说明，可以直接得到拟合曲线的表达式。(matlab_curve)

matlab中关于地震合成记录的制作，用雷克子波和合成速度，制作的合成地震记录，为褶积模型。(matlab in the production of synthetic seismic records, with a the Ricker wave and synthetic speed production of synthetic seismic record is the convolution model.)

MATLAB时频分析工具箱，很简单实用，能够满足基本时频分析使用(MATLAB toolbox for Time-Frequency Analysis )

遗传算法程序对目标进行优化，得到目标的最优解，很有帮助。(Genetic algorithm to optimize the target, the target optimal solution, very helpful.)

介绍UBM模型MAP算法过程，对于说话人识别有帮助(UBM model describes the process of MAP algorithm for speaker recognition helpful)