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SVD
% 奇异值分解 (sigular value decomposition,SVD) 是另一种正交矩阵分解法;SVD是最可靠的分解法,
% 但是它比QR 分解法要花上近十倍的计算时间。[U,S,V]=svd(A),其中U和V代表二个相互正交矩阵,
% 而S代表一对角矩阵。 和QR分解法相同者, 原矩阵A不必为正方矩阵。
% 使用SVD分解法的用途是解最小平方误差法和数据压缩。用svd分解法解线性方程组,在Quke2中就用这个来计算图形信息,性能相当的好。在计算线性方程组时,一些不能分解的矩阵或者严重病态矩阵的线性方程都能很好的得到解( Singular value decomposition (sigular value decomposition, SVD) is another orthogonal matrix decomposition method SVD decomposition is the most reliable method, but it takes more than QR decomposition near ten times the computing time. [U, S, V] = svd (A), in which U and V on behalf of two mutually orthogonal matrix, and the S on behalf of a diagonal matrix. And QR decomposition are the same, the original matrix A is no need for the square matrix. The use of SVD decomposition method are used as a solution of least squares error method and data compression. Using SVD decomposition solution of linear equations, in Quke2 on to use this information to calculate the graphics performance quite good. In the calculation of linear equations, some indecomposable matrix or serious pathological matrix of linear equations can be a very good solution)
- 2020-12-21 10:29:08下载
- 积分:1
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Desktop
利用FDTD算法简单计算波导耦合环的M文件。( M-file of using FDTD approach simulation the waveguide coupling ring)
- 2013-03-15 14:55:25下载
- 积分:1
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19864062MatrixOper
对于协方差矩阵的一种计算方法,对于地震中的反演约束算法能起到很好的作用。(For a kind of covariance matrix calculation method)
- 2011-05-30 13:43:06下载
- 积分:1
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DFP
DFP法求优化问题的C++源代码,经测试,该程序运行正常,得到了预期的结果。(DFP method for the optimization of C++ source code, tested, the program works correctly to get the desired results.)
- 2011-11-19 14:07:21下载
- 积分:1
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2Ddepth-migration
地震偏移成像:二维叠后深度偏移(相移法)(Seismic imaging: two-dimensional stack depth migration (phase shift method))
- 2021-04-06 21:29:02下载
- 积分:1
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chirp-Z变换 MATLAB代码.txt
说明: 一个简单的CZT chirp-Z变换例程(a simple example of CZT)
- 2019-04-26 10:39:33下载
- 积分:1
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信号检测贝叶斯
使用Matlab编程,对教材74页例3.3.1进行编程仿真。其中,正电压A的值、噪声方差值、每个码元周期内的采样点数N自行设定(可设置为可调的变量)。噪声值可使用Matlab中产生高斯随机数的函数来进行仿真。贝叶斯检测判决式中,先验概率P(H1)=P(H0),判断错误的代价因子设为1,判断正确的代价因子设为0.
按照上述参数的设定进行仿真,实现对仿真数据的贝叶斯检测判决;循环生成仿真数据,并进行判决结果的统计,即记录判决正确的次数,估计正确判决的概率。(The use of Matlab programming, teaching materials 74 pages of 3.3.1 programming simulation. Among them, the value of positive voltage A, the variance of noise, the number of sampling points in each symbol cycle (N) can be set by itself (adjustable variable). Noise values can be simulated using the function of generating Gauss random numbers in Matlab. In the Bias detection decision, the prior probability P (H1) =P (H0), the factor of error judgment is set to 1, and the correct cost factor is set to 0.
According to the simulation parameters and realize the judgment of Bayesian detection simulation data; generating cycle simulation data, statistics and decision, which records the correct number of judgment, the estimated probability of correct decision.)
- 2021-04-19 14:08:51下载
- 积分:1
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turbulence
计算流体动力学中湍流模型的源程序,代码十分宝贵(Computational fluid dynamics model of the source of turbulence, the code is very valuable)
- 2021-01-02 15:08:57下载
- 积分:1
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Spline3
三次样条插值函数实现
运行后画出曲线图,并得到插值函数表达式。(spline3)
- 2020-12-02 20:39:26下载
- 积分:1
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eightpoints
八点法计算camera matrix,八点法计算camera matrix,八点法计算camera matrix,八点法计算camera matrix,八点法计算camera matrix(Eight law camera matrix, eight law camera matrix, eight law camera matrix, eight law camera matrix, eight law camera matrix)
- 2012-12-12 04:17:23下载
- 积分:1