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gongetidufadshuzhixingzhi
共轭梯度法(Conjugate Gradient)是介于最速下降法与牛顿法之间的一个方法,它仅需利用一阶导数信息,但克服了最速下降法收敛慢的缺点,又避免了牛顿法需要存储和计算Hesse矩阵并求逆的缺点,共轭梯度法不仅是解决大型线性方程组最有用的方法之一,也是解大型非线性最优化最有效的算法之一。 在各种优化算法中,共轭梯度法是非常重要的一种。其优点是所需存储量小,具有步收敛性,稳定性高,而且不需要任何外来参数(Conjugate Gradient method (Conjugate Gradient) is between the steepest descent method between Newton method and a method, it only USES a derivative information, but overcome the steepest descent method slow convergence of weakness, but also avoid the Newton law needs to storage and computing Hesse inverse matrix and shortcomings, Conjugate Gradient method is not only solve linear equations with most of the large method, and also one of the most effective solution large nonlinear optimization of one of the algorithm. In all kinds of optimization algorithm, the conjugate gradient method is very important. Its advantage is the storage capacity needed, it has small step convergence, high stability, and doesn t require any exotic parameters numerical experiment, this is the modern scientific computing of the answer above problem sets)
- 2012-03-26 18:48:46下载
- 积分:1
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image-energy
matlab脚本,附带例子图片。能够批量对图像进行简单处理,并计算能耗(Matlab script that comes with example pictures. Able quantities of simple processing, the image and calculate the energy consumption)
- 2012-04-04 18:20:36下载
- 积分:1
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DRFM_RF
用matlab编写的基于DRFM的数字窄带干扰,分析了干扰信号的时域波形及频谱。(drfm matlab)
- 2021-03-04 14:29:32下载
- 积分:1
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handselectcontrolpoints
本段代码实现了手动选点的matlab配准,在此代码中只选择了3对控制点,同时从结果可以看出手动选点配准的不精确性,为自动选点配准算法的提出提供了实验依据(This code implements manually selected point matlab registration, in this code to select only the three pairs of control points, and the results can be seen from the point of registration manually selected imprecision, with the choice of site for the proposed automatic registration algorithm provide an experimental basis)
- 2014-02-21 20:31:21下载
- 积分:1
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ave_moatl
几组自己编造的典型声速剖面下的传播损失对比图。自动化是我们的集中追求。(several manmade sound speed profile and its horizontal transmission loss.)
- 2021-04-04 22:49:04下载
- 积分:1
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hunqei_v16
相控阵天线的方向图(切比雪夫加权),用于信号特征提取、信号消噪,基于SVPWM的三电平逆变的matlab仿真。( Phased array antenna pattern (Chebyshev weights), For feature extraction, signal de-noising, Based on SVPWM three-level inverter matlab simulation.)
- 2016-11-08 13:10:18下载
- 积分:1
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jens
a start book for programming in java tcl for network simulation
- 2009-03-23 21:50:43下载
- 积分:1
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thresholding_of_grayscale_images
find the threshold value of the gray scale image.
- 2009-12-04 15:28:36下载
- 积分:1
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ahok-pillar
information about ashok pillar
- 2014-02-13 00:29:54下载
- 积分:1
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NFOC
分数阶PID控制器MATLAB程序,可自行下载研究。(Digital Nonlinear Fractional Order PID Controller of the form)
- 2021-03-19 17:19:19下载
- 积分:1