NC-MUSIC

autocov computes the autocovariance between two column vectors X and Y with same length N using the Fast Fourier Transform algorithm from 0 to N-2. The resulting autocovariance column vector acv is given by the formula: acv(p,1) = 1/(N-p) * sum_{i=1}^{N}(X_{i} - X_bar) * (Y_{i+p} - Y_bar) where X_bar and Y_bar are the mean estimates: X_bar = 1/N * sum_{i=1}^{N} X_{i} Y_bar = 1/N * sum_{i=1}^{N} Y_{i} It satisfies the following identities: 1. variance consistency: if acv = autocov(X,X), then acv(1,1) = var(X) 2. covariance consistence: if acv = autocov(X,Y), then acv(1,1) = cov(X,Y)

人脸识别技术，用lda算法提取特征，MATLAB 源代码；希望对大家有帮助哈。(Face Recognition technology, with the characteristics of lda algorithm, MATLAB source code I hope all of you help Kazakhstan.)

create menu in matlab graph sin cos

Low Pass filter Matlab

说明：  gen_H:利用随机pi矩阵排列而成的LDPC稀疏校验矩阵产生； girthlenth：计算产生的矩阵H的围长(gen_H : pi using random matrix arranged at the LDPC have sparse matrix calibration; girthlenth : calculation of the matrix H Girth)

非常好的工具箱，包括了各种著名的算法，可以试一试(Very good kit, including a variety of well-known algorithm, can try)

用阵列光电传感器实现空间窄带陷波功能时，采用右图所示的空间权重结构：共有N=2M+1个敏感元件，各敏感元件宽为w，间距为p，中心处敏感元件的权重为+2M，其他2M个敏感元件的权重皆为-1。求此权重函数的傅立叶变换及空间功率谱，并绘图说明当N=7，p=1mm，w=1/３mm时的空间功率谱的零点特征及其应用意义。(With a photoelectric sensor array to achieve narrow-band notch function space, with the weight shown on the right of the space structure: a total of N = 2M+1 a sensitive element, the sensor width w, spacing p, the center of the sensitive components of weight+2 M, 2M a sensitive element of the other weights are all-1. This function find the Fourier transform of the weight and space power spectrum, and the drawing shows that when N = 7, p = 1mm, w = 1/3mm space power spectrum at zero characteristics and application significance.)

说明：  MATLAB 程式设计与应用 网络版 内容包括： MATLAB基本运算 MATLAB基本平面绘图 MATLAB基本立体绘图 简单方便的使用手册！(MATLAB programming content and applications online, including: MATLAB basic operations basic MATLAB-dimensional drawings of basic three-dimensional mapping is simple and convenient MATLAB user' s manual!)

卷积神经网络的GPU实现。使用GPU计算来加速神经网络训练。(GPU convolution neural network implementation. Accelerate the training time)

matlab编程时需要用到的常见函数的用法及作用(usage and the role of the common functions needed in the Matlab programming)