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Electrically large target scattering rapid angle scanning method

It is a TV large target and fast technology, which is applied in the field of ossification, and can solve the problem of not being able to obtain the complete information of the right-end term matrix

Active Publication Date: 2019-10-25
南京鲲瑜信息科技有限公司
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Problems solved by technology

The disadvantage of the Multi-interval technique is that the low-rank decomposition acts on a sub-matrix, and each decomposition cannot obtain the complete information of the right-end item matrix, so the number of bone elements obtained in the end is larger than that obtained by directly decomposing the right-end item matrix. number of elements

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  • Electrically large target scattering rapid angle scanning method
  • Electrically large target scattering rapid angle scanning method
  • Electrically large target scattering rapid angle scanning method

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Embodiment Construction

[0052] In order to better understand the technical content of the present invention, specific embodiments are given together with the attached drawings for description as follows.

[0053] combine figure 2 , the present invention proposes an electrically large target scattering fast sweep angle method, the method comprising:

[0054] S1: Create a multi-right term matrix , where the matrix for The impedance matrix, matrix for The right-hand term matrix of , the matrix for solution matrix, is the number of unknowns, is the number of columns of the right-hand matrix of the number of excitations, selected according to the incident wave sampling rules, for example, the incident direction is set to change along the same direction, and the incident direction ranges from 0 to 180 degrees.

[0055] S2: According to the rules determined by the memory constraints to obtain the bottom interval number , splitting the right-hand term matrix V into sub-matrix , , e...

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Abstract

The invention discloses an electrically large target scattering rapid angle sweeping method. The method comprises the steps of splitting a right-end term matrix into a plurality of sub-matrixes; calculating a solution matrix of each sub-matrix by adopting MPI parallel interpolation decomposition for each sub-matrix; combining the sub-matrixes calculated at the previous level into a plurality of new sub-matrixes according to a preset combination rule; calculating a solution matrix of the new sub-matrix by adopting an MPI parallel mode for the combined new sub-matrix, repeating the combination-calculation process until the number of the combined sub-matrixes is 1, and calculating a solution matrix of a right-end term matrix by combining the finally obtained solution matrix of the sub-matrix,so that the calculation speed is effectively increased. Besides, the solution matrix is calculated by adopting a multi-layer multi-interface method, so that the peak memory in each calculation process is effectively reduced. The operational capability is improved.

Description

technical field [0001] The invention relates to the technical field of bone metabolization, in particular to a fast angle-sweeping method for electrically large target scattering. Background technique [0002] In the research of multi-right-term problems, low-rank decomposition methods based on randomness are often used to speed up the solution of such problems. The process of using low-rank decomposition to speed up the multi-right-term problem is as follows: First, the matrix form of the multi-right-term problem can be expressed as: [0003] [0004] Among them, the matrix for The impedance matrix, matrix for The right-hand term matrix of , the matrix for solution matrix; is the number of unknowns, is the number of items on the right. right-hand term matrix low-rank decomposition , then the solution to the right-hand term problem is: [0005] [0006] Among them, the matrix is ​​the projection matrix of , and the matrix is The matrix of the ...

Claims

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Application Information

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IPC IPC(8): G06F17/16
CPCG06F17/16
Inventor 何林
Owner 南京鲲瑜信息科技有限公司
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