sparse-frequency-decomposition

基于奇异值分解的人脸识别方法 梁毅雄 龚卫国 潘英俊 李伟红 刘嘉敏 张红梅 提出了一种将傅里叶变换和奇异值分解相结合的人脸自动识别方法.首先对人脸图像进行傅里叶变换,得到其具有位移不变特性的振幅谱表征.其次,从所有训练图像样本的振幅谱表征中给定标准脸并对其进行奇异值分解,求出标准特征矩阵,再将人脸的振幅谱表征投影到标准特征矩阵后得到的投影系数作为该人脸的模式特征.然后,对经典的最近邻分类器算法进行了改进,并采用模式特征之间的欧式距离作为相似性度量,从而完成对未知人脸的识别.采用ORL (Olivetti Research Laboratory)人脸库对本文提出的人脸识别方法进行验证,获得了100.00 的识别率.实验结果表明,本方法优于现有的基于奇异值分解的人脸识别方法,且对表情、姿态变换等具有一定的鲁棒性. (Face recognition based on singular value decomposition method Deliberate simultaneously Gong Weiguo Li Wei Hung Stephen Lau, Hong-Mei Zhang Ying-Jun Pan Paper, a Fourier transform and singular value decomposition of the combination of automatic face recognition. First of all, the face image by Fourier transformation, it has the same characteristics of the displacement amplitude spectra. Secondly, all training The amplitude spectrum of the sample images given in standard face representation and its singular value decomposition, find the standard characteristic matrix, then the amplitude of spectral characterization of human faces projected onto the standard characteristic matrix of projection coefficients obtained as the face of the model features . Then, the classical nearest neighbor classifier is improved, and the use of Euclidean distance between pattern features as the similarity measure, thus completing the identification of unknown human faces. using ORL (Olivetti Research La)

主要是完善的MLD检测，并且仿真出误码率图(Mainly the MLD detection, and simulation of bit error rate in Figure)

INTERNAL FACULT CLASSIFICATION OF TRANSFORMER WINDING ..WITH BASEPAPER AND CODING ....ENJOY IT

说明：  使用matlab软件实现fsk的调制与解调(fsk modulation and demodulation)

MATLAB数值分析与应算习题代码2 3节，用于学习交流，不可用商业用途。(MATLAB Numerical Analysis and Problem code 23 should be considered section for learning exchanges, can not be used for commercial purposes.)

短时傅里叶变换函数，用以实现信号的短时傅里叶变换，观察时频图(Short-time Fourier transform functions to implement short-time Fourier transform signal, when observed frequency diagram)

此函数用于IS-95前向链路系统的仿真，包括扩频调制，匹配滤波，RAKE接收等相关通信模。 仿真环境为加性高斯白噪声信道，数据速率为9600 KBps 。 (This function is used for IS-95 forward link system simulation, including the spread spectrum modulation, matched filter, RAKE receiver and other related communications module. Simulation environment for the additive white Gaussian noise channel, data rate is 9600 KBps.)

增强，计算目标个数及周长增强，计算目标个数及周长(Increased number of objects and calculate the circumference increased number of objects and calculate the perimeter)

matlab 代码实现神经元的Hodgkin Huxley 模型(matlab code for Hodgkin Huxley model)

How to solve ODE in matlab