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最速下降法

于 2021-03-26 发布

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下载积分: 1 下载次数: 9

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说明：最优化课程中的最速下降法matlab程序，利用了wolfe搜索和armijo线搜索(Matlab program of steepest descent method in optimization course, using Wolfe search and Armijo line search)

文件列表：

最速下降法\Armijo_search.m, 448 , 2018-12-07
最速下降法\f_test.m, 193 , 2018-12-07
最速下降法\gradient_test.m, 280 , 2018-12-07
最速下降法\Opt_Wolfe.m, 654 , 2018-12-02
最速下降法\optimization_erjiyuanzhuchilun.m, 127 , 2018-12-07
最速下降法\steepest_descend_method.m, 1065 , 2018-12-03
最速下降法\Wolfe_search.m, 704 , 2018-12-02

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STFT
这是一个对时间序列进行短时傅立叶变换的源程序,测试过,好用的.(This is a program for STFT,which had tested.)

2009-05-06 08:20:45下载

积分：1
source
线弹性模型，可以对一般的弹性体通过abaqus进行验证使用(Linear elastic model)

2013-11-18 10:33:29下载

积分：1
AnalyticAnelastic
二维粘弹性介质中波的传播的解析形式。应用Carcione等在1988年发表的《WAVE PROPAGATION SIMULATION IN A LINEAR VISCOELASTIC MEDIUM》一文中的方法，更加详细的介绍见英文描述。该代码对于做波场模拟的同学有很好的参考价值。( MATLABScript for obtaning the analytical solution for 2D wave propagation in a viscoelastic medium, based on the Appendix B of paper of Carcione et al. (1988)(1), corrected in (2). The source used is a Ricker wavelet in the y velocity component. A figure of the source temporal function and its inverse Fourier transform are provided to verify the good working of the method. Also works for elastic variables by substituting the values of vp and vs by real constant ones (vp_0 & vs_0). Attenuation is implemented by GMB-EK rheology presented in (4) and thoroughfully explained in (3). In order to make a proper comparison with numerical data it is recommended to either use the same rheology in both the numerical and the analytical. It is also possible to get an almost constant Q value by increasing a lot the number of mechanisms used in both the numerical and the analytical solutions, thus minimizing the effects of the Q fitting in the comparison.)

2012-04-23 13:18:07下载

积分：1
FOURN
本程序可模拟ND情况下的傅里叶变换，经过验证无误(This program can simulate the Fourier transform of the ND situation, and after the test, the program is correct )

2012-02-27 09:33:19下载

积分：1
PLS
偏最小二乘回归的通用程序，以“基于近红外光谱分析的汽油组分建模”为例 (Partial least squares regression of the general program of " Near infrared spectroscopy based gasoline component modeling" as an example)

2011-05-19 13:13:02下载

积分：1
FFbp
Training a 3 layers feed forward neural network using back propagation algorithm

2011-11-24 02:38:11下载

积分：1
zip
说明：基于MATLAB SIMULINK的F-14战斗机俯仰运动仿真，包含风载模型，控制模型等(Pitch motion simulation of F-14 Fighter Based on MATLAB Simulink, including wind load model, control model, etc)

2020-03-14 00:15:24下载

积分：1
Cp
说明： 1.5MW风力机叶片功率系数Cp计算程序示例，采用梯形法数值积分计算(1.5MW wind turbine blade power coefficient the Cp calculation program examples, numerical integration using the trapezoidal method)

2012-10-22 20:36:32下载

积分：1
hq600
小波包分析提取振动信号中的特征频率，微分方程组数值解方法，有循环检测，周期性检测。( Wavelet packet analysis to extract vibration signal characteristic frequency, Numerical solution of differential equations method, There are cycle detection, periodic testing.)

2017-03-24 14:23:03下载

积分：1
umat-temperature
ABAQUSYONG UMAT 描述热力耦合子程序(ABAQUSYONG UMAT subroutine describe thermal coupling)

2020-09-14 14:27:57下载

积分：1

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