shuju

system identification matlab codes...

Voltage sags are one of the main problems in transmission and distribution grids with high penetration of distributed generation. This paper proposes a voltage support control scheme for grid-connected power sources under voltage sags. The control is based on the injection of reactive current with a variable ratio between positive and negative sequences. The controller determines, also, the amount of reactive power needed to restore the dropped voltage magnitudes to new reference values confined within the continuous operation limits required in grid codes. These reference values are chosen in order to guarantee low current injection when fulfilling the voltage support objective. Selected experimental results are reported in order to validate the effectiveness of the proposed control.

a radix-2,3 and 5 FFT, hopefully this is new and helpful :)

kalman滤波跟踪系统的源代码，初学者必看(kalman filter tracking system, source code, beginners must see)

high-end mathematical algorithm matlab source

MATLAB 7.0 学习ppt，我学习MATLAB就是用这套ppt的，感觉很好，推荐一下。(MATLAB 7.0 learning ppt, I learn MATLAB is to use this ppt, and feel good, recommended it.)

常微分方程的数值解法 包括RUNGE-KUTTA方法 Adams预估——校正算法 和MATLAB自带的ODE45解法(Numerical solution of ordinary differential equations including the method of Adams RUNGE-KUTTA predictor- corrector algorithm and ODE45)

将方波周期信号展开成傅里叶级数并生成3次，5次，8次，10次谐波(Expand the square wave into a Fourier series of periodic signal and generates 3 times, 5 times, 8 times, 10 times harmonic)

一个dbgirdeh实例，控制单元格宽度，动态添加字段，添加记录，出门登记完整实例(A dbgirdeh instance, the control cell width, dynamically add fields, add records)

Given an output function f(x) and a cost function J(x) (and gradients), optimal inverse functions are found which produce the input x* with the lowest cost based on the current desired output. Output and cost functions produce a scalar. The method is demonstrated on 2D problems (for convenient visualization). With 2D plots removed (all but Figure 41), the code can run higher dimension systems also.