steganography

惯性导航系统通常由惯性测量装置、计算机、控制显示器等组成。惯性测量装置包括加速度计和陀螺仪,又称惯性导航组合。3个自由度陀螺仪用来测量飞行器的三个转动运动；3个加速度计用来测量飞行器的3个平移运动的加速度。计算机根据测得的加速度信号计算出飞行器的速度和位置数据。控制显示器显示各种导航参数(Inertial navigation system usually means from the inertial measurement, control, computer monitor etc.. Inertial measurement device comprises accelerometer and gyroscope, also called inertial navigation. 3 degree of freedom gyro is used to measure the vehicle three rotational motion 3 accelerometers used 3 translational motion measurement vehicle acceleration. The computer according to the acceleration signal measured to calculate the vehicle speed and position data. All kinds of navigation parameter control display)

一个参照葛德彪书编写的3D FDTD源文件，用matlab语言编写，非常详细的注释，很易看懂,2mur bianjie(GE De-biao a reference book, prepared by 3D FDTD source files, using matlab language, very detailed notes, it is easy to understand, 2mur bianjie)

Gradient Adaptive Laguerre Lattice Filter( Description： Implements the order recursive adaptive laguerre filter from Fejzo and Lev-Ari (1997). Advantages: *Fewer parameter to model than FIR filters modeling long impulse responses *guaranteed stability, unique global minimum, small number of parameter for prescribed modelling error *numerically robust & and low computational complexity ( O(M) ). *Fast convergence (RLS equivalent) with no apriori learning rate required *Order recursive, so filter coefficients are uncorrelated with each other, allowing for modular implementation. Setting the pole parameter to 0 yields the standard classical gradient adaptive FIR algorithm. Includes simple example on cross-talk resistant echo cancellation to show how to use it. )

beamforming by LMS algorithm in CDMA communication

mfcc的matlab显示方法，可以直接运行(mfcc s showing by matlab)

对数据集特征压缩，用样本熵的方法进行压缩，简单，易懂，matlab程序源代码(Compressed data set characteristics, sample entropy compression, simple, understandable, matlab program source code)

说明：  计算方法：函数平方逼近多项式的均方误差计算(Calculation method: function square mean square error of approximation calculation of polynomial)

利用MATLAB产生m序列 产生m序列图形 这是一个m序列的MATLAB产生程序(Sequence generated using MATLAB m m sequence generated graphics This is a MATLAB m sequence generation process)

通过给定天线阵列的参数，计算出切比雪夫馈电电流分布，并计算出方向图(By giving the parameters of the antenna array, the current distribution of the Chebyshev feed current is calculated and the direction map is calculated.)

Matlab and its applications in analysis of continuous-time signals and systems has been discussed in part 1 and 2 of this series of practical manuals. The purpose of part 3 is to discuss the way Matlab is used in analysis of discrete-time signals and systems.