introFFT

这个是我对于模糊pid控制自己进行的simulink仿真，很有用。(This is my fuzzy pid control themselves for the simulink simulation, very useful.)

说明：  To improve the boiler drum level control system of a power plant, the three challenging issues encountered include (1) effect of ‘‘false water level’’, (2) controller parameter mismatches due to variant working conditions and (3) signal noise caused by uncertainties of drum level. In this paper, based on analyses of the drum level signal, an adaptive derivative action is presented to monitor steam flow, and thus, the effect of ‘‘false water level’’ is weakened. The uncertainties of parameter mismatches and noise are predicted by developing a Grey predictor based algorithm (GPBA). In order to resolve the three problems and further control performance, an adaptive technique is combined with the GPBA to develop an adaptive Grey predictor based method. Finally, concrete simulations give that the proposed method has obvious superiority over conventional methods.

说明：  求解参数估计的常用算法——EM，即期望最大化算法，用于代替样本量不完全时的极大似然估计算法。(Common algorithm for solving parameter estimation- EM, expectation maximization algorithm is used to replace the sample size is not completely at the maximum likelihood estimation algorithm.)

利用matlab计算切趾布拉格光栅的反射谱(calculating the reflection spectra of apodized Bragg fiber grating )

single phase active power filter and may also contain images and documents relative to filter control

MATLAB程序在信号与处理中的应用，比较有用，KDH格式(MATLAB procedures in the signal and processing applications, more useful, KDH format)

局部近似Taylor Series Expansion，全局近似Interpolation(Taylor Series Expansion，and Interpolation)

共五个程序包括劳伦兹图像、区域图像、三维图像、向量场及简单运算器(A total of five procedures, including Lorentz image, regional images, three-dimensional images, vector field and a simple calculator)

海杂波服从K杂波，K杂波在matlab中的实现(The sea clutter obey K Clutter, Clutter K implementation in matlab)

this is to apply frame blocking.. top apply non stationary signal to semi stationary signal