stabrnd

MATLAB讲座：介面介绍，基础命令，常用数学函数，常用语句等(MATLAB Lecture: Interface description, basic commands, common mathematical functions, common statements, etc.)

对ECG信号进行巴特沃斯去噪和去除基线漂移( ECG Baht wass denoising and elimination baseline wander )

直接序列扩频，在matlab上的程序，及其仿真图，希望可以为matlab入门的人有所启发。(Direct Sequence Spread Spectrum on matlab program, and simulation map, hoping to inspire people to matlab entry.)

掺5 MgO的PPLN晶体温度调谐曲线，泵浦光1064nm，周期为29.5,30,30.5,31,31.5um(5 MgO doped PPLN crystal temperature tuning curve of the pump laser 1064nm, period 29.5,30,30.5,31,31.5um)

说明：  code for shannon coding

关于球面波的传播演示的matlab源程序，在大学物理中很有用(the matlab source code for sphere wave flash,it is usful)

可以计算不同雷洛系数下的紊流,非常方便!(The main code can compute different turbulence Venturello coefficients, very easy!)

Calculates the Variance Ratio Test of a time series, with or without the heteroskedasticity correction. (Calculates the Variance Ratio Test of a time series, with or without the heteroskedasticity correction.)

Matlab Filter Implementation In this section, we will implement (in matlab) the simplest lowpass filter $displaystyle y(n) = x(n) + x(n-1), n=1,2,ldots,N $ (from Eq.$ ,$(1.1)). For the simplest lowpass filter, we had two program listings: Fig.1.3 listed simplp for filtering one block of data, and Fig.1.4 listed a main program for testing simplp. In matlab, there is a built-in function called filter3.3 which will implement simplp as a special case. The syntax is y = filter (B, A, x) where x is the input signal (a vector of any length), y is the output signal (returned equal in length to x), A is a vector of filter feedback coefficients, and B is a vector of filter feedforward coefficients. The filter function performs the following iteration over the elements of x to implement any causal, finite-order, linear, time-invariant digital filter:3.4

pope hinsken 算法可以无初值求取三维坐标转换参数(pope hinsken algorithm can do 3D coordinate transforming without a preliminary value)