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vr_parameter
应用matlab 实现对机械钻速方程的影响参数分析，石油工程，钻井。(Application of matlab to achieve ROP Equation of parametric analysis, petroleum engineering, drilling.)
- 2011-12-13 09:19:29下载
- 积分：1
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moxingyuece3
高速铁路路基沉降是一个复杂的系统过程,涉及不同时期、不同工况,选用单一的预测模型不足以反映路基整体的变形规律.Logistic模型及Verhulst模型的曲线均为S形,可以反映全过程的地基沉降与时间的关系.针对路基填筑期和降水期两个时段利用MATLAB软件编制程序计算模型参数,得到Logistic模型和灰色Verhulst模型,进而求得两者的最优加权组合模型.对比结果表明:在路基填筑期由两者的最优加权组合模型预测得到的结果与实测结果较吻合,拟合精度高于单一模型 而在降水期Verhulst模型的预测值更接近实测值,平均相对误差约为1.75％,拟合精度较高.(High-speed railway subgrade settlement process is a complex system involving different times and in different conditions, the choice of a single forecasting model does not adequately reflect the overall deformation of roadbed. Curve Logistic model and Verhulst models are S-shaped, the whole process can be reflected foundation settlement versus time. against roadbed construction period of two hours and precipitation using MATLAB software programming model parameters, the Logistic model and gray Verhulst model, and then get the optimal model of a weighted combination of the two. comparative results indicate : results and experimental results in the roadbed construction period by the weighted combination of the best of both models predicted than the anastomosis fitting accuracy than a single model precipitation predicted value of Verhulst model closer to the actual value of the average relative error approximately 1.75 fitting accuracy.)
- 2014-01-10 17:30:42下载
- 积分：1
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用BP神经网络解决分类问题的MATLAB实现
说明： BP神经网络进行数据分类，是一种多层前馈神经网络，该网络的主要特点是信号前向传递，误差反向传播。运用梯度下降法，(BP neural network is a multi-layer feedforward neural network for data classification. Its main characteristics are forward signal transmission and back error propagation. Using gradient descent method and BP neural network to classify data is a multi-layer feedforward neural network. The main characteristics of this network are forward signal transmission and back error propagation. Using gradient descent method,)
- 2019-04-08 11:01:56下载
- 积分：1
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segmentation
Provides segmentation introducing clusters for each region
- 2011-01-19 13:37:08下载
- 积分：1
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MMSE_CE
两个仿真分别实现LS（最小二乘法）和MMSE（最小均方误差）信道估计。(Two simulations were realized LS (least squares) and MMSE (minimum mean square error) channel estimation.)
- 2020-09-15 19:27:55下载
- 积分：1
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communication_model
一个混沌保密通信的simulink模型，效果很好(A chaotic secure communication of the simulink model, the effect of good)
- 2021-04-06 23:19:02下载
- 积分：1
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armalast
这个函数用于估算光谱中的最大信息熵，它同时满足了倒频谱的局限和相关谱的局限(This function provides an ARMA spectral estimate which is maximum
entropy satisfying correlation constraint (number of poles)and cepstrum constrains (number of ceros))
- 2010-07-29 05:47:21下载
- 积分：1
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XYZ
利用matlab实现光谱和XYZ色彩功能(Matlab spectrum and XYZ color function)
- 2012-09-06 08:47:13下载
- 积分：1
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BLDC
无刷直流电机模型及双闭环控制，很实用，效果良好(Brushless DC motor model and double-loop control, it is practical to good effect)
- 2013-10-16 21:45:54下载
- 积分：1
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Section_3_ZF_homogeneous_MISO
Section_3_ZF_homogeneous_MISO.
simulation algorithm in MISO.
- 2014-08-19 13:02:49下载
- 积分：1
