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powerflux
电力系统潮流计算的计算机算法—PQ分解法潮流计算(Power Flow Calculation of the computer algorithm-PQ decomposition of power flow calculation)
- 2020-07-03 20:40:01下载
- 积分：1
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Topology_Optimization_a_99_line
Ole Sigmund编写的99行Matlab程序是拓扑优化方面的经典案例。该程序有5个可修改的输入参数：竖直方向网格划分数nely,水平方向网格划分数nelx,保留的材料的体积分数volfrac,惩罚因子penal和滤波器大小rmin。加载方式矩阵F和支承方式fixeddofs也可以分别选取不同的方式或组合。(Ole Sigmund prepared by the 99-line Matlab program is a classic example of topology optimization. The program has five can modify the input parameters: the number of vertical mesh nely, the number of horizontal mesh nelx, keep the volume fraction of material volfrac, penalty factor penal and filter size rmin. Loading mode and the supporting means fixeddofs matrix F can also be selected separately or combined in different ways.)
- 2009-12-29 17:29:20下载
- 积分：1
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MATLAB-30-case
MATLAB智能算法30个案例分析 源代码(MATLAB 30 case studies of intelligent algorithm source code)
- 2015-06-08 15:38:48下载
- 积分：1
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数据降维工具箱
说明： 数据降维工具箱，包括一些典型算法，例如pca，lle，mds，lda等。(Data dimension reduction toolbox, including some typical algorithms, such as PCA, LLE, MDS, LDA, etc.)
- 2020-09-29 15:05:22下载
- 积分：1
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BPSX150sCharacteristics
solar cell modelling
- 2012-10-11 06:20:21下载
- 积分：1
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SVG_Export_of_Figures
Converts 3D and 2D MATLAB plots to the scalable vector format (SVG).(Converts 2D and 3D plots to the MATLAB scala ble vector format (SVG).)
- 2007-04-05 19:36:55下载
- 积分：1
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matlabchengxuzai-huaxue
MATLAB是美国MathWorks公司自80年代中期推出的适用于科学和工程计算的数学软件。它优秀的数值计算能力、卓越的数据可视化能力和简洁的程序语言编写使其很快在数学软件中脱颖而出。本文通过化学计量学中的两个多元校正为例,简要介绍了MATLAB程序设计在化学计量学计算中的应用。 更多还原
(
MathWorks MATLAB is a mathematical software United States launched the company since the mid-1980s apply to scientific and engineering computing. It is excellent numerical ability, excellent data visualization capabilities and simple programming language to write so quickly come to the fore in mathematics software. In this paper, two chemometrics multivariate calibration, for example, a brief introduction MATLAB programming in chemometrics computing applications. More Restore)
- 2013-12-14 15:52:09下载
- 积分：1
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sanpuxianchazhi
说明： 基于matlab的例程，用于谐波分析的三谱线插值法(Three-line interpolation for harmonic analysis)
- 2020-06-24 11:40:02下载
- 积分：1
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MUSIC
MUSIC算法是一种基于矩阵特征空间分解的方法。从几何角度讲，信号处理的观测空间可以分解为信号子空间和噪声子空间，显然这两个空间是正交的。信号子空间由阵列接收到的数据协方差矩阵中与信号对应的特征向量组成，噪声子空间则由协方差矩阵中所有最小特征值（噪声方差）对应的特征向量组成。MUSIC算法就是利用这两个互补空间之间的正交特性来估计空间信号的方位。噪声子空间的所有向量被用来构造谱，所有空间方位谱中的峰值位置对应信号的来波方位。MUSIC算法大大提高了测向分辨率，同时适应于任意形状的天线阵列，但是原型MUSIC算法要求来波信号是不相干的。(MUSIC algorithm is a matrix decomposition method based on feature space. From the geometric point of view, the observed spatial signal processing can be decomposed into signal subspace and noise subspace, it is clear that the two spaces are orthogonal. The signal received by the array to the subspace of the covariance matrix of the signal component corresponding eigenvectors, the noise subspace of the covariance matrix of all by the smallest eigenvalue (noise variance) eigenvectors corresponding to the composition. MUSIC algorithm is the use of orthogonal properties between these two complementary space to estimate the spatial orientation of the signal. Noise subspace of all vectors are used to construct the spectrum, all the spatial orientation of the spectrum corresponding to the peak position of the signal wave direction. MUSIC algorithm greatly improves the resolution measurements, while the antenna array adapted to any shape, but the prototype MUSIC algorithm requires to wave sign)
- 2014-02-19 13:23:48下载
- 积分：1
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GM(1_1)
GM(1,1)模型1-4
1：GM(1,1)模拟模型，在matlab中的输入方法为gm1（x），x指要模拟的序列。
2：GM(1,1)预测模型，在matlab中的输入方法为gm2（x，K），x指要模拟的序列，K指从以后序列第一个数据算起的第k个待预测数据。
3：GM(1,1)群模拟模型，在matlab中的输入方法为gm3（x），x指要模拟的序列。
4：GM(1,1)群预测模型，在matlab中的输入方法为gm4（x，K），x指要模拟的序列，K指从以后序列第一个数据算起的第k个待预测数据。
gm4对序列趋势比较好的数据预测效果较好，对上下变动的数据，特别是后4个数据趋势跟前面的数据相反的，预测效果很差。
gm2对上下变动的数据，预测效果比gm4好，但对趋势较好的数据，预测精度没有gm4高。
gm3比gm1模拟精度要高。
可以以x=[1 3 5 7 9 11 13 15]进行实验。x输入默认行向量。
所有程序在matlab6.0上调试通过。(GM (1,1) 1-4 1 : GM (1,1) simulation model Matlab in the input method for gm1 (x), x entail simulation sequence. 2 : GM (1,1) model, in the Matlab input method for gm2 (x, K), x entail simulated sequence, from the K refers to the first series after a run of data k pending forecast data. 3 : GM (1,1)- simulation model, in the Matlab input method for gm3 (x), x entail simulation sequence. 4 : GM (1,1)- forecasting model, in the Matlab input method for gm4 (x, K), x entail simulated sequence, from the K refers to the first series after a run of data k pending forecast data. Gm4 right sequence relatively good trend data predicted better results, the next change in the data, especially after four data with the previous trend data contrary, predict poor. Gm2 next to the change in forecast resu)
- 2007-05-31 11:13:42下载
- 积分：1
