LS_diffusion

说明：  在Matlab里可以方便计算一个序列频谱等特征的程序(in Matlab can easily calculate a spectral characteristics of the process)

这是一个关于BPSK信号的产生和调制的详细过程 。(his is a detailed process regarding the generation and modulation BPSK signal.)

This paper examines the asymptotic (large sample) performance of a family of non-data aided feedforward (NDA FF) nonlinear least-squares (NLS) type carrier frequency estimators for burst-mode phase shift keying (PSK) modulations transmitted through AWGN and flat Ricean-fading channels. The asymptotic performance of these estimators is established in closed-form expression and compared with the modified Cram`er-Rao bound (MCRB). A best linear unbiased estimator (BLUE), which exhibits the lowest asymptotic variance within the family of NDA FF NLS-type estimators, is also proposed.

matlab灰度图像的边缘提取：直方图均衡化，canny算子实现一阶偏微分，计算梯度幅值和方向(matlab Gray Image Edge Extraction: histogram equalization, canny realization of first-order partial differential operator, calculate the gradient magnitude and direction)

matlab 音乐合成文件 合成吉他音的包络 识别各次谐波(matlab Music the synthesis files synthetic guitar sound envelope to identify all the harmonics)

Calcul de la transformée Wigner-Ville

水和蒸汽性质计算V5.5，能够计算任何条件下水和蒸汽的参数，能够在matlab下使用。(Water and steam properties calculation V5.5, able to calculate any conditions of water and steam parameters can be used in matlab.)

sift算法page，详细论述了sift算法的基本过程(sift algorithm page, sift algorithm discussed in detail the basic processes)

数值微分精度及步长的关系，截断误差和舍入误差，体会误差对结果的影响，用算法1 和算法2 分别得到的结果进行比较，由Taylor公式可得到两种算法的截断误差(Accuracy of numerical differentiation and the relationship between step length, truncation error and rounding error, the error on the results of experience with algorithm 1 and algorithm 2 respectively, to compare the results obtained by the Taylor formula for the truncation error of two algorithms available)

Matlab 脑电信号转mat数据工具包，脑电研究的福音。(EEG data transfer mat Matlab toolkit gospel EEG studies.)