signal-spectrum

说明：  时间混叠信号matlab程序,是利用时间混叠信号进行循环谱估计的前提。该程序用于证明时间混叠后信号为周期信号。(Time Aliasing)

Function to plot ellipse in matlab

说明：  一束5W 的线偏振光以Φ = 45 度方位角振动，垂直入射到玻璃 - 空气表面，该光束波长0.6μm，玻璃介质折射率1.54 @0.6m，当入射角θ从0-70 度变化时，通过给定条件，分别完成如下要求： 画出该光束反射光的光强曲线（I-θ）； 分析该反射光束的偏振态变化，画出偏振方向变化曲线（φ-θ）和偏振光束相位变化曲线 （Φ-θ）。 （注：光束从光密到光疏的界面，在入射角θ 从0-70 度变化中，包括了临界角θc）(Bunch of linearly polarized light 5W to Φ = 45 degrees azimuth vibration, normal incidence to the glass- air surface, the beam wavelength 0.6μm, glass refractive index 1.54 @ 0.6m, when the incident angle θ changes from 0-70 degrees By the given conditions, namely the completion of the following requirements: Draw the reflected light beam intensity curve (I-θ) analysis of changes in the polarization state of the reflected beam, draw the polarization direction of the curve (φ-θ) and polarized beam phase curve (Φ-θ). (Note: the light beam from the optical density of the interface is sparse, the incident angle θ  variation from 0-70, including the critical angle θc))

Laguerre自适应滤波器源代码(Laguerre adaptive filter source code)

说明：  ：用NRTL方程，对二元混合物的气一液相平衡数据和液一液相平衡数据进行关联，并用液一液相平衡数据优化所得的参数，预测汽液相平 衡．关联和预测的结果均能满足程设计要求(: The NRTL equation, the binary mixture of gas-liquid phase equilibrium liquid-liquid phase equilibrium data and the data associated with liquid-liquid phase equilibrium data to the optimum parameters to predict vapor-liquid equilibrium. Correlation and prediction results can meet the design process)

说明：  负荷频率控制（LFC）是调整系统的频率达到额定值（如50HZ）或/和维持区域联络线交换功率为计划值。频率稳定是电力系统电能质量的一个重要指标。负荷的任意突然变化都有可能导致系统间联络线交换功率的偏差及系统频率的波动。因此，为保证电能质量，需要一个负荷频率控制(load frequency control,LFC)系统，该系统的目的是将系统频率维持在标称值并且尽可能使控制区域之间的未计划的联络线交换功率最小。(Load frequency control (LFC) is to adjust the frequency of the system to reach the rated value (such as 50 Hz) or / and maintain the exchange power of the regional tie line to the planned value. Frequency stability is an important index of power quality in power system. Any sudden change of load may lead to the deviation of power exchange between tie lines and the fluctuation of system frequency. Therefore, in order to ensure the power quality, a load frequency control (LFC) system is needed. The purpose of the system is to maintain the system frequency at the nominal value and minimize the unplanned tie line exchange power between the control areas.)

BP神经网络用于分类与回归 ,非常好用，强烈建议下(BP neural network for classification and regression)

this source code is very good

脉冲激光器输出表达式的仿真实验，可以研究脉冲激光器的脉冲(the matlab of the out put of the pulse laser is used for the studied by the user)

using genetic algorithm to find the peak point of the given function