youmohoudu

this file contains some m-files about calculating the fractional fourier transform

simulation of cognitive radio

关于惯性导航技术中的一个小的利用四元数算法求解姿态的程序，简单实用(Inertial navigation technology on a small initial alignment procedures to achieve a calculated INS s initial posture)

小波包变换分析信号的MATLAB程序 小波分析信号去噪 小波分解与重构经典程序(Wavelet packet transform analysis of signals in MATLAB program Signal de-noising wavelet decomposition wavelet analysis and reconstruction classic program)

三电平有源电力滤波器双闭环PI空间电压矢量控制(Three-level APF double-loop PI space voltage vector control)

差分检测的程序，包括一个调制程序，以及两个检测程序：一个是比较复杂但是易于理解的，一个是简便方法。对于理解调制解调的初学者来说，很有帮助(Differential detection procedures, including a modulation process, as well as two testing procedures: one is more complicated but easy-to-understand, one is the easy way. For understanding the modulation and demodulation for beginners, very helpful)

无刷永磁直流电动机模型，可用于飞轮储能。基于matlab的simulink建立。(Brushless permanent magnet DC motor model can be used for flywheel energy storage. Established based on the matlab simulink.)

响应面法计算相关系数情况下结构的可靠度.已知极限状态方程，变量服从对数正态分布，变量均值和标准差已知，且知道变量的相关系数。(Response surface methodology to calculate the correlation coefficient of reliability under the circumstances structures known to limit state equation, variables lognormal distribution, the mean and the standard deviation is known variables, and that the correlation coefficient variables.)

说明：  利用局部平衡磁化强度理论对J-A模型进行修正后的实际磁化强度强度、非磁滞磁化强度曲线随应力变化情况对比(Calculate the hysteresistc magnetization and anhysteresistc magnetization vs stress)

计算一幅图像的pnsr数值 只需要把要处理的图像直接输入就可以了 简单 方便(Calculation of numerical pnsr an image just to have to deal with the direct input of images can be a simple and convenient)