wavelet

说明：  幅度调制，It is a diffrent matlab code for amplitude modulation.(amplitude modulation, It is a different Matlab code for amplitude Modul ation.)

主要是用c语言实现matlab中的fftshift函数的，(Mainly used c language matlab in fftshift function,)

This circuit uses the AC6 block of SimPowerSystems™ library. It models a permanent magnet (PM) synchronous motor drive with a braking chopper for a 3HP motor. The PM synchronous motor is fed by a PWM voltage source inverter, which is built using a Universal Bridge Block. The speed control loop uses a PI regulator to produce the flux and torque references for the vector control block. The vector control block computes the three reference motor line currents corresponding to the flux and torque references and then feeds the motor with these currents using a three-phase current regulator.

Simple phaser effet with all-pass filters

相干与非相干成像系统的比较。复习光学传递函数OTF的概念，以及该函数与相干传递函数CTF的关系。用OTF完成单透镜系统成像的计算。(The comparison of coherent and incoherent imaging system.Review the concept of OTF, optical transfer function and the function relations with CTF coherent transfer function.Complete the single lens imaging system with OTF calculation.)

Plots of power and phase of two modes in transmission gratings(Long period gratings). both numerical and analytical methods

故障诊断相关的MATLAB代码，主要有神经网络算法的m文件(MATLAB Code Related to Fault Diagnosis)

说明：  分类器 最小分类错误的分类器 模式识别的重要应用领域(Minimum classification error classifier classifier)

this a useful program for students in electrical engineering and it it is about Luenberger observer for speed-sensorless DC motor drive

《计算物理基础》是北师大彭老师写的，对学习用matlab解决物理问题很有帮助(this is a book about Computational Physics used matlab,the author is Mr peng and come from Beijing Normal University)