DCMotorControl_final

matlab实现基本的通信仿真技术bpsk(To achieve basic communications simulation technology bpsk using matlab)

说明：  matlab开发环境,emd源代码程序，提供大家学习交流(matlab development environment, emd the source code program, to provide them to learn from the exchange)

声子晶体线缺陷的程序，自己编写的很好用，给需要做声子晶体方面的同行参考(Phononic crystal line defect in the program, write your own good, need to make a sound sub-crystal counterparts reference)

Channel estimation including the LS and LMMSE algorithm,total simulation codes and the comparison of the two methods

基于离散余弦变换（DCT）的数字水印源代码包括水印生成、嵌入、提取等(Based on the discrete cosine transform (DCT) of the digital watermark source code including the watermark generation, embedding, extraction, etc.)

从初值出发，先计算y对时间t的导数，得到y的变化速度；求出x对t的导数，得到x随时间的变化速度。然后时间前进一小步h=0.002，同时x和y也都发生一个小的变化，即在原来数值基础上加上时间步长h和变化速度的乘积。如果x到达1或者-1，强制让y发生变化。这个过程不断迭代，得到结果。 (completed chart)

计算三维坐标各点相互距离，结果存在对角阵中(calculate 3D points distance between eachother!)

代码里有很完整的注释和解释，ofdm系统仿真 含16qam调制 fft 加窗 加cp等模块，利用自然梯度算法。( Code, there are very complete notes and explanations ofdm system simulation including 16qam modulation fft windowing modules plus cp, Use of natural gradient algorithm.)

实现arnold置乱，其中利用到置乱周期，是图像置乱的不错程序。(Achieve arnold scrambling, which take advantage of scrambling cycle, the image scrambling for a good program.)

说明：  电压型逆变器，学习逆变器的基本模型，适合入门的者 仿真软件matlab(Voltage-type inverter, inverter to learn the basic model, suitable for those who get into simulation software matlab)