ldpc_toolkit

用平面波展开法计算的二维光子晶体空气孔结构，TM和TE模式的能带图，matlab程序源代码(With the plane wave expansion method to calculate the two-dimensional photonic crystal structure of air holes, TM and TE modes of the energy band diagram, matlab source code)

1、系统仅处于训练状态。训练序列为2cos(2π×f1×n/fs)， 干扰为sin(2π×f2×n/fs)；序列长度为100个样点。 其中n=0…99，f1=1kHz，f2=2kHz，fs=8kHz。 2、采用LMS算法，均衡器输入为训练序列加上干扰，均衡器阶数为21阶，步长因子β=0.01。 3、在Matlab中编写浮点LMS算法，绘制均衡器的输出波形，并与训练序列进行对比。 (1, the system only in the training status. The training sequence is 2cos (2πf1n/fs), interference sin (2πf2n/fs) sequence length of 100 samples. Where n = 0 ... 99, f1 = 1kHz, f2 = 2kHz, fs = 8kHz. 2, using LMS algorithm, the input to the equalizer training sequence plus interference equalizer order is 21 bands, step factor β = 0.01. 3, the preparation of the floating-point LMS algorithm in Matlab, draw the output waveform equalizer, and with the training sequence comparison.)

四路抢答题，输入可以为四路不同信号，通过锁存抢答信号进行抢答。(Four-way scramble answer, for four different input signals, signals through the latch Answer Answer.)

DC MOTOR POSITION CONTROL PID MATLAB

说明：  简单利用最小二乘法对缠绕的干涉相位进行解缠，但最小二乘法有个固有缺陷，其是基于全局相位解缠方法，容易造成整体误差扩散。 (Simple least squares method of winding the use of the interferometric synthetic aperture radar (InSAR) to interfere in phase unwrapping)

基于二进制编码的遗传算法PID参数整定,示例(Based on the binary-coded genetic algorithm PID parameter tuning)

说明：  鲸鱼优化算法(WOA)也是一种元启发式优化算法。一种新的模拟座头鲸狩猎行为的元启发式优化算法(鲸鱼优化算法，WOA)。目前的工作与其他群优化算法相比的主要区别在于，采用随机或最佳搜索代理来模拟捕猎行为，并使用螺旋来模拟座头鲸的泡泡网攻击机制。(Whale optimization algorithm (WOA) is also a meta heuristic optimization algorithm. A new meta heuristic optimization algorithm (whale optimization algorithm, WOA) is proposed to simulate the hunting behavior of humpback whales. The main difference between the current work and other swarm optimization algorithms is that the random or optimal search agent is used to simulate the hunting behavior, and the spiral is used to simulate the bubble net attack mechanism of humpback whales)

说明：  本文使用了两种方法优化matlab的程序，缩短了算法的时间。方法1：使用Optimization Toolbox中的并行优化；不需要修改代码。方法2：增加一行代码，即可优化(Improving Optimization Performance with Parallel Computing)

说明：  在用混沌理论和神经网络进行短期负荷预测时，神经网络的输入的选择至关重要，该程序用matlabl实现了基于混沌时间序列的嵌入维数的选择(In chaos theory and neural networks with short-term load forecasting, neural network is essential to choose the input, the program implemented with matlabl chaotic time series based on the number of choices of embedding dimension)

针对采用自并励励磁系统的同步发电机组，对其建立机端电压的过程进行的仿真案例。(Study on the Field Flashing Control of Large Synchronous Generator)