真正的背景差分法检测运动目标开源码

This is a matlab code for facial recognition

Intersection surface drawing.

实现含风电场RX模型的系统潮流计算，风电场采用RX模型，此模型充分考虑风力发电机的输出功率特性，比其他模型完善，在模型中将迭代过程分为两步:常规潮流迭代计算和异步风力发电机的滑差迭代计算。( In short, the algorithm carried out to simulate the wind farmas an RX bus is as follows: 1)Begin with s=snorm in each machine, snorm being the rated slip of the same. With this value, calculate the impedance Z. 2)With these values, model the wind farm as an RX bus including the admittances of the machines in the admittance matrix and in the corresponding terms of the jacobian. 3)As a result of the first power flow, the voltages in the buses can be obtained. With these, can calculate the mechanical power of the machine. 4)With the value of s, calculate the power extracted the wind with . 5)Compare both powers and, if they are not equal, recalculate，by means of (G) and go to step 2. If they are equal, he algorithm finishes.)

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 )

PIECEWISE_EVAL: evaluates a piecewise function of x usage: y = PIECEWISE_EVAL(x,breakpoints,funs) arguments (input) x - vector or array of points to evaluate though the function breakpoints - list of n breakpoints, -inf and +inf are implicitly(PIECEWISE_EVAL : evaluates a piecewise function of x usage : PIECEWISE_EVAL y = (x, breakpoints, funs) arguments (input) x-vector or array of po ints to evaluate the function though breakpoin ts-list of n breakpoints.- inf and inf are implicitly)

基于MATLAB的语音信号处理短时分析，可用于初学者实验内容，附实验截图(MATLAB-based short-time analysis of speech signal processing, can be used for experimental content for beginners, with a test screenshot)

说明：  matlab主要函数指令表，按功能分类，非常方便好用的。(The main function matlab instruction sheet, according to the functions of classification, very easy-to-use.)

层次分析法matlab代码；在网上找到了一些好用的层次分析法的代码，挺好用的！(AHP matlab code the Internet to find some useful analytic hierarchy code, very good use!)

pipelined ADC, 各种参数可调，最后包括fft分析和整个传输曲线(pipelined ADC, adjustable parameters, and finally including the entire transfer curve analysis and fft)

非线性PID神经元网络控制，有需要的童鞋可以瞧一瞧(Nonlinear PID neural network control, there is a need of shoes can take a look)