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cmpfit-1.2
很好的最小二乘求解工具,经典算法的c语言版本实现(A MINPACK-1 Least Squares Fitting Library in C)
- 2014-03-06 21:12:48下载
- 积分:1
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pi_phaseshift_grating
基于matlab的利用传输矩阵法对相移光栅发射谱、时延、色散的数值模拟(phase-shifts of fiber grating)
- 2012-11-26 13:11:57下载
- 积分:1
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Cure
隐式及显示技术模拟复合材料结构的固化,UMAT程序(Cure Simulation of Composite Structures Applying Implicit and Explicit FE Techniques)
- 2017-11-22 08:22:27下载
- 积分:1
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weno
weno计算阶跃函数 时间离散采取三阶RK法;使用五阶WENO方法计算函数在[-1,1]内的数值解。(weno calculation step function)
- 2020-12-28 17:09:01下载
- 积分:1
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FFT
利用FFT估计正弦信号的频率,要估计一个叠加了高斯白噪声的正弦信号 的频率 ,可以通过对x(n)做傅里叶变换,得到频谱图,找出幅度的最大值对应的频率值 ,进行多次变换,求出均方误差 。改变信噪比SNR,通过仿真可以得出随着信噪比增加,均方误差减小。(Sinusoidal signal using FFT frequency estimation, to estimate a Gaussian white noise superimposed on the frequency of sinusoidal signals, can be achieved by x (n) be the Fourier transform to get spectrum to identify the magnitude of the frequency value corresponding to the maximum , several transformations, find the mean square error. Change the signal to noise ratio SNR, the simulation can be drawn as the SNR increases, the mean square error decreases.)
- 2011-04-26 10:53:04下载
- 积分:1
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kring123
克里金(Kriging)插值法又称空间自协方差最佳插值法,它是以南非矿业工程师D.G.Krige的名字命名的一种最优内插法。克里金法广泛地应用于地下水模拟、土壤制图等领域,是一种很有用的地质统计格网化方法。它首先考虑的是空间属性在空间位置上的变异分布.(Kringing smooth)
- 2020-09-16 21:57:55下载
- 积分:1
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3jiao
上三角或下三角矩阵也有大部份的元素不储存值(为0),我们可以将它们使用一维阵列来储存以节省储存空间,而对称矩阵因为对称于对角线,所以可以视为上三角或下三角矩阵来储存。(Upper or lower triangular matrix or a large majority of elements are not stored value (0), we can use them to store a one-dimensional array in order to save storage space, and because the symmetrical diagonal symmetric matrix, it can be regarded as the or lower triangular matrix storage.)
- 2013-07-12 21:37:33下载
- 积分:1
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data-fit
基于最小二乘法的离散数据的曲面拟合,有二次拟合和三次拟合,并能自动出图(Based on the least squares method of discrete data of the surface fitting, there are quadratic fitting and three fitting, and can automatically plot)
- 2021-04-23 09:18:48下载
- 积分:1
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Electronic-Warfare-Signal-Processing
《电子战信号处理》讲义 ,西电赵国庆老师的经典讲义,学习电子战信号处理的童鞋一定要看看哈(Electronic Warfare Signal Processing)
- 2014-05-04 22:47:45下载
- 积分:1
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sod-problem-by-MacCormack
一维 问题,即激波管问题,是一个典型的一维可压缩无黏气体动力学问题,并有 解析解。对它采用二阶精度 两步差分格式进行数值求解。(Use MacCormack difference scheme for solving a two-dimensional shock tube problem)
- 2014-01-03 09:15:51下载
- 积分:1