PMSM_SMO

已知两个序列x[n]=cos(n*pi/2), y[n]=ej*pi*n/4x[n],绘制X(ejw)和Y(ejw)和幅度和相角,说明它们的频移关系(The known two sequence x [n] = cos (n* PI/2), y [n] = ej* PI* n/4 x [n], draw x (ejw) and y (ejw) and amplitude and phase Angle, suggesting their frequency shift relationship )

This function calculates displacement response at interfaces of an elastic multilayered medium to a vertically propagating unitary SV or SH elastic wave. The function can be used to calculate the displacement response in a layered soil profile. Transfer functions between interfaces can be easily calculated by division of the total (=upward+downward) displacement response on the corresponding interfaces.

BP神经网络模型的建立过程，并利用模型来验证模型的准确性。两部分输入输出数据(BP neural network modeling process and use the model to verify the accuracy of the model. The two input and output data)

说明：  三相PLL锁相环的闭环系统仿真模型，仿真并分析三相输入信号包含谐波、不平衡、负序和直流偏移时锁相环的锁相结果(Closed-loop system simulation model of three-phase PLL phase-locked loop,Simulation and analysis of phase-locked loop results when three-phase input signals include harmonics, unbalance, negative sequence and DC offset)

给出一组表征年平均全球表面温度异常的数据“gsta.dat”。这组数据的第一列表示时间，第二列表示相应的数据值。(A given dataset “gsta.dat”, which is the annual mean global surface temperature anomaly. In “gsta.dat”, the first column is the time and the second is the corresponding data value.)

LTE下行链路自适应技术，用于空分复用闭环反馈，主要有CQI、PMI、RI估计，自适应调制和预编码(LTE downlink adaptive technology for space division multiplexing closed-loop feedback, mainly CQI, PMI, RI estimation, adaptive modulation and precoding)

用于将RGB彩色图转化为灰度图的matlab代码！(Gray color map of the matlab code!)

改进型的蚁群算法，能够快速求解多目标规划(Improved ant colony algorithm, fast multi-objective planning)

33节点的配电网潮流计算程序，程序自带33节点数据(33 nodes in the power flow calculation program, the program comes with 33 node data)

核主成分分析和支持向量机方法相结合，用于数据分类和预测。(Kernel principal component analysis and support vector machine method combined for data classification and prediction.)