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Electromagnetic solving method for particle launching simulation

A particle and electromagnetic technology, which is applied in the field of electromagnetic solutions, can solve the problems of large amount of calculation in the backtracking algorithm, and achieve the effect of high parallelism of calculation and improvement of calculation speed

Active Publication Date: 2014-07-16
BEIHANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The backward tracking algorithm is more accurate than the forward tracking algorithm, but the forward algorithm can calculate the situation distribution in the entire space according to the ray beam emitted once, and the reverse algorithm can only calculate one point at a time, so the backward tracking algorithm Large amount of calculation

Method used

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  • Electromagnetic solving method for particle launching simulation
  • Electromagnetic solving method for particle launching simulation
  • Electromagnetic solving method for particle launching simulation

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Embodiment Construction

[0018] Such as figure 1 As shown, the specific implementation method of the present invention is as follows:

[0019] 1. Emit particles from the emission source, and add the emitted new particles to the particle list. The emission density of particles in various directions mainly depends on the antenna pattern factor θ and φ are the angular coordinate components of the point in the spherical coordinate system.

[0020] Taking the emission source as the vertex, the space is divided into all directions at equal intervals. Given the sampling interval Δθ of θ, Sampling interval Generally speaking

[0021] The angles after segmentation are:

[0022] θ i =iΔθ i=1, 2, 3...int(π / Δθ) (1)

[0023]

[0024] Defined in The number of particles emitted at one time in the range is n i n j , The maximum value is N 1 N 2 (n i n j N i With n j Product of N 1 N 2 Is N 1 With N 2 Product of N 1 With N 2 Is a given constant, if Then N 1 =N 2 And n i = N j ).

[0025]

[0026]

[0027] Initialize the i...

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Abstract

The invention relates to an electromagnetic solving method for particle launching simulation. The electromagnetic propagation is simulated by the motion of particles, and the density of particles represents electromagnetic energy. Each particle has the attributes of position, velocity, total displacement distance, interval angle, lifetime, existence and the like, and the particles follow the electromagnetic reflection and diffraction laws. In this way, the rendering of particles can be visualized; space can be partitioned according to the required resolution, the number of particles in a grid can be counted, and the electromagnetic energy of the point can be solved; the motion of particles represents the diffusion of irradiation, and the calculation of diffusion factor can be omitted. The electromagnetic solving method has the characteristics of high accuracy, simple and visual method and high degree of parallelism, and can be applicable to various electromagnetic calculation solving and visualization systems.

Description

Technical field [0001] The invention relates to an electromagnetic solution method, in particular to a method for electromagnetic distribution situation calculation by simulating emission of electromagnetic particles, which is used for electromagnetic calculation solution and electromagnetic situation visualization in a large area. Background technique [0002] Whether in the military or civilian fields, electromagnetics play an important role. For large-scale areas, it will be a huge and impossible project to use special equipment to receive or detect. Therefore, the electromagnetic The calculation of the distribution situation is of great significance. [0003] Ray Tracing is a relatively common electromagnetic calculation method. The ray tracing method is divided into forward tracking and reverse tracking. Forward tracking means that the ray tracing starts from the emission source and emits a large number of rays into the surrounding space at equal angular intervals, and then t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/08
Inventor 张霖穆兰任磊陶飞
Owner BEIHANG UNIV
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