code514

an algorithm to calculate fast fourier transform of sound signal

中心逼近时的灰色预测，根据实际情况通过不断调整matlab程序中的m值，达到更高的精度。(Change the grey prediction of background value, through the continuous adjustment of the m value in the matlab program according to the actual situation, to achieve higher accuracy.)

transformation from an arbitrary state-space representation to the modal 2 state-space representation

说明：  常用的DEA交叉模型，是目前广泛使用的效率评价模型之一(DEA crossover model, which is commonly used in DEA crossover model, is one of the most widely used efficiency evaluation models at present.)

使用MATLAB建立一个AR模型,并画出图形与原信号进行比较 (MATLAB to build a AR model, and draw graphics compARison )

2ddp dynamic mesh for fluent udf

FLC - RLS APPROACHES/ techniques

基本的boost PFC simulink仿真，带有功率因数测量。控制采用滞环控制，功率因数可达99 以上。(The basic boost PFC simulink simulation, with a power factor measurement. Control using hysteresis control, power factor up to 99 .)

说明：  燃料电池 simulink仿真模型，主要用于燃料电池系统仿真(fuel cell simulink models)

极有用的数据处理程序，方便处理实验数据，并取得数学表达式(matlab)(very useful data processing procedures, facilitate the processing of experimental data and mathematical expression made (Matlab))