eetop.cn_FFT

An effective implicit time integration scheme was proposed for the fi nite element solution of nonlinear problems in structural dynamics. Various important attributes were demonstrated. In particular, it was shown that the scheme remains stable, without the use of adjustable parameters, when the commonly used trapezoidal rule results in unstable solutions. In this paper we focus on additional important attributes of the scheme, and specifi cally on showing that the procedure can also be effective in linear analyses. We give, in comparison to other methods, the spectral radius, period elongation, and amplitude decay of the scheme and study the solution of a simple ‘model problem’ with a very fl exible and stiff response.

王济等 MATLAB在振动信号中的应用(Wang Ji et al MATLAB application in vibration signal)

sift算子中高斯金字塔和DOG的生成，只是该算子的最初步骤(sift operator：the generation of Gaussian pyramid and DOG。it is only the first steps)

matlab ofam 16qam 信道仿真(matlab ofam 16qam )

提供了一个简单的模拟退火算法的示例。能够帮助初学者快速掌握模拟退火算法的内容。(Provides an example of a simple simulated annealing algorithm. Can help beginners to quickly master the content of simulated annealing algorithm.)

此程序也是是HHT中EMD实现方法之一，程序完整，一共三种方法，有助于初学者全面掌握HHT的程序实现(This program is also the HHT in EMD to achieve one of the ways the integrity of the process, a total of three methods to help beginners fully grasp HHT program implementation)

使用MATLAB的GUI接口设计一个简单的计算器，实现两个数的基本运算。(Use the GUI interface of MATLAB to design a simple calculator,realizing basic operations of two numbers.)

通过应用高斯混合模型来实现语音识别，语音样本为短时语音(By applying a Gaussian mixture model to achieve speech recognition, voice samples of short-time speech)

一篇关于雷达的一些初级概念的很形象的解释，并带有计算方法(An article on some of the radar image of the primary concepts are explained, and with the calculation method)

说明：  这是捷联惯导系统一阶、二阶微分方程法和一阶、二阶四元数法和完整解之间的误差代码(This is the sins of the first order, second order differential equation method and first order, second order quaternion method and the error between the full code solution)