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Hiding of data in the images

Knowledge of the process noise covariance matrix is essential for the application of Kalman filtering. However, it is usually a difficult task to obtain an explicit expression of for large time varying systems. This paper looks at an adaptive Kalman filter method for dynamic harmonic state estimation and harmonic injection tracking.(Knowledge of the process noise covariance matrix is essential for the application of Kalm an filtering. However, it is usually a difficult task to obtain an expli cit for large expression of time varying system s. This paper looks at an adaptive Kalman filter method for dynamic estimation a harmonic state nd harmonic injection tracking.)

说明：  IMF能量计算，能量熵 ，EMD，matlab(IMF energy calculation)

12元均匀线列阵，DFT波束形成 功能：阵元间隔为对应于频率f0的半波长。假设一线性调频信号源从-30°方向入射到 基阵，不考虑噪声，进行DFT波束形成。(12 yuan uniform linear array, DFT beamforming Function: array element spacing corresponding to half the wavelength of the frequency f0. Suppose a linear FM signal source is incident the direction of-30 to the base array, without regard to noise, performs DFT beamforming.)

estimate the orientation of fingerprint

Phasell 联合开发网 - pudn.com

史密斯图(Smith chart)是一款用于电机与电子工程学的图表，主要用于传输线的阻抗匹配上。在复平面上采用双线性变换。实部 r=常数和虚部 x=常数，两族正交直线变化为正交圆并与反射系数|G|=常数和虚部x=常数套用而成。本文档通过MATLAB来编写程序，绘制一个完整的SMITH圆图(Smith figure (Smith chart) is a for electrical and electronic engineering chart, mainly for the transmission line on the impedance matching in the plane bilinear transformation real part r = constant and imaginary part x = constant, two RACES straight for orthogonal round orthogonal changes and and reflection coefficient | G | = constant and imaginary part x = constant apply mechanically and into this document to write the program through MATLAB, draw a complete Smith circle diagram )

说明：  绕线式异步电动机带负荷启动，其转子串联电阻分级投切(Wound rotor induction motor with a load start, its rotor graded series resistance switching)

说明：  二维的仿真，入射波为空间高斯型，入射到一个单狭缝上透射情况。金属介质为Drude模型(Two-dimensional simulation, the spatial Gaussian incident wave, incident to a single slit on the transmission case. Medium for the Drude model of metal)

PLL simulator on MATLAB