three_level_NPC

这时一个聚类程序，使用c均值方法的聚类程序(A classing program of c mean methed )

经典DOA估计算法matlab仿真，延迟相加，MUSIC，ESPRIT。有详细注释，步骤清晰，适合初学者学习(Classic DOA estimation algorithm matlab simulation, delayed addition, MUSIC, ESPRIT. There are detailed notes, clear steps for beginners to learn)

绘出时域图，在时域上进行分析，提取时域特征值：绝对均值，标准差，有效值，方根幅值，波形指标等等，进行故障特征提取，识别故障(The time domain diagram is drawn and the time domain is analyzed. The time domain eigenvalues are extracted: absolute mean, standard deviation, effective value, square root amplitude, waveform index and so on. Fault feature extraction and fault identification are carried out.)

说明：  pmsm自抗扰控制的S函数编写程序，基于MATLAB编写(The S-function program of PMSM ADRC is based on MATLAB)

提供了CDMA通信的matlab仿真程序(Provide a CDMA communication matlab simulation program)

现有的几个网络拓扑随机发生器，其实很难生成理想的网络拓扑结构，其主要原因在于很难控制节点的疏密和间距。我们提出来的这个改进算法，在随机抛撒节点的时候使用了K均值聚类，由本算法作为网络拓扑发生器，网络节点分布均匀且疏密得当，边的分布也比较均衡(The few existing random network topology generator, is in fact very difficult to generate the desired network topology, the main reason it is difficult to control the node density and spacing. We put forward the improved algorithm, throw in random nodes when using the K-means clustering, by the algorithm as a network topology generator, network nodes and spacing evenly distributed properly, the edge of a more balanced distribution of)

通过此代码实现萤火虫算法仿真，改变函数，即可实现不同的函数结果。(This code implements the firefly algorithm simulation, change the function, you can achieve different function results.)

利用时域有限差分法对基于表面等离子体的天线进行模拟(Use of finite difference time domain simulation method based on surface plasmon antenna)

这一段代码是基于matlab的仿真编程，主要是针对16QAM的调制，代码及其仿真结果无不从各个方面详细分析了技术原理。(This piece of code is based on the Matlab simulation programming for 16QAM modulation, code and its simulation results are all from the various aspects of a detailed analysis of the technical principles.)

主要介绍基于dct的数字音频水印，以及水印的嵌入和水印的提取(Introduced digital audio watermarking based on dct, and the watermark embedding and watermark extraction)