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Method-for-solving-EM-problems
提出了一种求解电磁场有限元 边界元混合法所生成的线性方程组的有效方法 ———内观
法结合多波前法.由于该线性方程组的系数是一个部分稀疏部分满填充的矩阵,为了加速求解,应用内观法将系数矩阵分为 2块,一块是有限元法形成的稀疏矩阵,另一块是边界元法生成的满阵,然后用多波前法求解稀疏矩阵方程,用高斯 约当消去法解满阵方程. 采用该方法,计算了二维多层介质柱体的雷达散射截面.计算结果表明,该方法的计算效率远远高于传统的高斯法.(Proposed for solving mixed finite element boundary element linear equations generated by an effective method of Vipassana--- a combination of multi wave front method. Since the coefficients of linear equations is a part of the sparsely populated part of the full matrix, in order to speed up the solution, application of Vipassana coefficient matrix is divided into two, one is the finite element method for the formation of the sparse matrix, the other is the boundary element method generates the full array, and then use the multifrontal method for solving sparse matrix equation Gauss Jordan elimination method with full matrix equation solution. use this method to calculate the two-dimensional multi-layer dielectric cylinder of the radar cross section. The results show the computational efficiency of this method is much higher than the traditional Gaussian law.)
- 2011-04-26 09:02:53下载
- 积分：1
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julei2
说明： 自己编写的使用聚类方法进行彩色图象分割 效果还可以(themselves prepared for the use of clustering methods color image segmentation can also effect)
- 2006-05-12 11:28:26下载
- 积分：1
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the-Multi-focus-Images-Fusion.kdh
本论文的主要内容包含以下几个方面:
首先，论述了图像融合技术的基本理论、现状和方法，并对多聚焦图像融合
算法及融合结果的评价方法做了分类。
其次，论述了小波理论及其图像的小波分解和重构，研究了小波分解层数及
小波基函数的选择对多聚焦图像融合效果的影响，并给出了在多聚焦图像融合算
法中最佳小波分解层数和小波基函数的选取
再次，研究了基十小波变换的多聚焦图像融合方法，并提出了改进后的基十
小波变换区域对比度的多聚焦图像融合方法，并利用Matlab工具进行算法进行了
仿真实验
最后，总结本论文的研究成果和不足，并指出发展方向。(The following main parts are included.
Firstly, this paper discussed the basic theory, present state and means of image
fusion technology, classified multi-focus image fusion algorithm and evaluation means of image fusion consequences.
Secondly, this paper discussed the wavelet theory and the wavelet decomposition
and reconstruction of image, studied the effects on selection of wavelet basis function
and wavelet decomposition level to multi-focus image fusion, at last the best choices are
proposed.
Thirdly, a new method: regional contras of wavelet transformation are proposed for
multi-focus image fusion based on wavelet transformation and Matlab is employed to
simulation algorithm
Finally, this paper summarized the research achievement and insufficient of this
paper and pointed out development direction.
)
- 2011-05-24 18:21:44下载
- 积分：1
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DSB
双边带调制信号，内含FFT码长控制的代码，直接可用，供通信专业的朋友使用。(double signal modulation.)
- 2014-09-17 23:06:33下载
- 积分：1
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QAM16_demodu
完成3gpp标准中LTE系统16QAM调制方式的编码，该附件为子函数，输入bit流即可(Completion of 16QAM modulation coding 3gpp standard LTE system, the attachment of Functions, input bit stream can be)
- 2014-11-01 23:58:04下载
- 积分：1
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JSIP_2013081510281570
This paper investigates the generalized Pars ’s theorem of fractional Fourier transform (FRFT) for concentrated data. Also, in the framework of multiple FRFT domains, Pars ’s theorem reduces to an inequality with lower and upper bounds associated with FRFT parameters, named as generalized Pars ’s theorem by us. These results theoretically provide potential valuable applications in filtering, and examples of filtering for LFM signals in FRFT domains are demonstrated to support the derived conclusions
- 2015-02-21 10:20:28下载
- 积分：1
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3
说明： eeg data,i have processed the datas,you can easily use load to load and use the data
- 2010-05-24 16:05:33下载
- 积分：1
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calculateuserposition
用MATLAB编写求解伪距定位方程的程序，对实际数据进行处理，解算出接收机的位置及钟差信息。提供8个通道的两组数据如下，X, Y, Z 为WGS-84坐标系下各通道所跟踪卫星的坐标，Range为与之对应的校正后的伪距测量值。(Using MATLAB pseudorange positioning equation solver, and the actual data processing, solution and calculate the position of the receiver clock error information. 8 provides the following two data channels, X, Y, Z coordinates of the WGS-84 coordinate system of each channel of the satellite tracking, Range for the pseudo-range measurements corresponding corrected.)
- 2014-02-24 21:09:45下载
- 积分：1
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harq1
harq in lte for channel coding in matlab to correct error in 4g
- 2019-06-10 03:09:37下载
- 积分：1
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interpolating_polynomial
高次方程求解的c代码实现，用于数值分析课，简单实用，可作为参考(Lagrange interpolating polynomial,Bisection algorithm,Newton’s method and Secant method)
- 2009-05-08 00:40:13下载
- 积分：1
