simulink-PID

用分步傅里叶变化法求解非线性薛定谔方程，适用于非线性光纤系统(split_step_fourier method for nonlinear fiber optic)

finite difference time domain 2d code

牛顿法最速下降法共轭发等最计算最优解计算方法 优化作业 简单程序(Newton method)

实现一维和二维分世界傅里叶变换，含有对LFM信号的实例仿真。(Realization of one and two dimensional Fourier transform divided world, contain instances of LFM signal simulation.)

利用duffing振子检测微弱信号频率的matlab程序。可以检测与周期策动力频率相差0.03之内的微弱信号频率。信噪比达到-68db(use Duffing oscillator frequency detection of weak signals in Matlab procedures. Can be detected with the cycle driven frequency difference of 0.03 within the weak signal frequency. Signal-to-noise ratio-68db)

本文件利用matlab实现dijistra算法。主要方法是标记未走完的点，然后动态优化穷举法。(This document uses MATLAB to achieve dijistra algorithm. The main method is to mark the incomplete points, and then dynamically optimize the exhaustive method.)

THREE PHASE MODEL OF DYNAMIC VOLTAGE RESTORER FOR INVERTER CONTROL SCHEME

能够实现三相离散电压电流的瞬时有功、无功功率计算以及绘制。(It can realize instantaneous active and reactive power calculation and drawing of three-phase discrete voltage and current.)

我们设计和实验证明 布拉格光栅波分复用器 三波长的平面光波电路复用 公交车站台。1310和1550 nm的光，被设计成 由一个半周期通过定向耦合器分离后 和一个完整的周期耦合作用与0.07和0.19分贝的损失， 分别。1492 nm的光反射回来的布拉格 光栅对定向耦合器及其制作少损失 超过2分贝。我们也介绍和讨论新概念 集成光学三工收发器，使用此过滤器。 (We designed and experimentally demonstrated a Bragg grating-assisted wavelength-division-multiplexing filter for the three-wavelength multiplexing on a planar-lightwave-circuit platform. The 1310- and 1550-nm lights were designed to be separated after passing the directional coupler by a half-cycle and a full-cycle coupling actions with losses of 0.07 and 0.19 dB, respectively. The 1492-nm light was reflected back by a Bragg grating fabricated on the directional coupler and its loss was less than 2.0 dB. We also introduced and discussed the new concept of an integrated optical triplexer transceiver using this filter.)

基于DCT数字水印算法的Matlab实现源代码,1. 将文字水印和图像水印转换为二值序列水印； 2. 对水印进行置乱，提高其安全性； 3. 选择合适大小的块，给出DCT域中频分块编码方案；(DCT-based digital watermarking algorithm Matlab source code, a text watermark and image watermark converted into a binary sequence watermark .. 2 watermark scrambling to improve their safety 3 Select the appropriate size of the block, given DCT domain frequency block coding scheme )