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说明：  三相可带不对称负载的变频器，12个IGBT，精度高，THD<1 (Three-phase inverter can be loaded with asymmetric, 12 IGBT, high accuracy, THD &lt 1 )

drive of pmsm with vector control

时间序列预测ARIMA模型，这是一种基于风速数据的预测程序。(ARIMA time series forecasting model, which is a program based on the forecast wind speed data.)

强化学习是人工智能中策略学习的一种。本程序提供一强化学习事件Q-learning demo，并绘制图形进行形象化演示。(Reinforcement learning is a kind of artificial intelligence in the strategic study。This program provides a Q-learning demo with plotting.)

数据的统计描述与分析的matlab实现()

电力系统潮流计算软件.可以计算配电网和主网的潮流.(void Node_Sequen(int*pNum_Node, int*pNum_Line, int*pNum_Gen, int*pNum_Load, int*pNum_Swing, int*pNum_GPV, int*pNum_GPQ))

有关用MATLAB对语音时域进行分析的几种方法(Speech time-domain analysis of MATLAB in several ways)

说明：  有偏卡尔曼滤波器可以用来消除无线定位中的非视距误差,本程序加入了非视距检测模块，对于NLOS使用有偏卡尔曼滤波，对于LOS使用标准卡尔曼滤波(Biased Kalman filter can be used to eliminate the wireless location in NLOS error, the program joined the non-line-detection module, for use NLOS biased Kalman filter, using the standard Kalman filter for the LOS)

根据直扩原理，首先有随机数发生器产生一系列二进制信息数据（+1，-1），每个信息比特重复Lc次，Lc对应每个信息比特所包含的伪码片数，包含每一比特Lc次重复的序列与另一个随机数发生器产生的PN序列c(n)相乘。然后在该序列上叠加高斯白噪声和形式为i(n)=Acosw0n余弦干扰下次信号，切余弦干扰信号的振幅满足条件A<Lc。在解调器中进行与PN序列的互相关运算，并且将组成各信息比特的Lc个样本进行求和。加法器的输出送到判决器，将信号与门限值0进行比较，确定传送的数据为+1还是-1，计数器用来记录判决器的错判数目。(According to the principle, first some straight expansion random number generator produces a series of binary data (+ 1-1), each information bit repetitive Lc times, Lc for each information bit contains PN code piece count, embraces each bit Lc times repeated sequence and another random number generator produces PN sequence c (n) multiplication. Then in the sequence superimposed on gaussian white noise and forms as I (n) = Acosw0n cosine interference next time signal, cut cosine interfering signal amplitude satisfy conditions A < Lc. In the modem with the cross-correlation operation PN sequence, and the information will comprise the Lc a sample bits peace. The output of the adder judgment device, will signal to compare with threshold 0 data transmitted, determine for+ 1 or-1, counter is used to record the number victimised judgment. )

采用基于理想频谱响应的微分器，用于位置微分速度，并统计误差(The differentiator response based on an ideal spectrum for position differential speed, and the statistical error)