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converter control pwm simuling

对一个模拟信号进行fft变换，并求出其幅值图和相位图，对于fft初学者会有一定的用途(An analog signal fft transform, and find its magnitude and phase diagrams, for beginners there will be some use of fft)

Evaluation of mimo system in wireless system

An all-optical regeneration scheme for DQPSK and QPSK signals using phase-sensitive amplifiers (PSAs) is studied and its effectiveness is investigated through numerical simulations. By leveraging the ability of PSAs to provide phase and amplitude regenerative amplification, we show significant simultaneous suppression of both phase and amplitude noises of (D)QPSK signals under optimized conditions. The reduction in the phase noise variance of a noise-corrupted DQPSK signal obtained by one such regenerative amplification can be as large as 5.5 folds, showing its good potential for distributed optical regeneration of (D)QPSK signals.  2008 Elsevier B.V. All rights reserved.

外文资料里面的源代码，验证可用，小波包分析提取振动信号中的特征频率。( Foreign materials inside the source code, Verification is available, Wavelet packet analysis to extract vibration signal characteristic frequency.)

说明：  matlab种各种随即数的生成源代码，文件中有近20种随机数的产生。(the number of species then matlab generate all the source code, file, nearly 20 kinds of random number generation.)

Series active power filter

说明：  matlab中s函数的详细介绍及实用例题。(matlab s function in detail and practical examples.)

The PID controller is the most widely used controller in industrial systems. However, appropriately tuning a PID controller is not an easy task although it has only three parameters at most. This submission provides a tool for beginners to learn PID tuning.

有约束的情况下的MPC MATLAB程序，可以正常运行，对于想学习mpc控制器的初学者可以参考修改。(Under the constraint of MATLAB, the MPC can run normally, beginners can refer to want to learn the MPC controller changes.)