Method for building and paralleling quasi three-dimensional electromagnetic environmental model on basis of parabolic equation

Abstract

A method for building and paralleling a quasi three-dimensional electromagnetic environmental model on basis of a parabolic equation mainly adopts a sectioning method, i.e. an antenna transmitter is taken as a center, a three-dimensional space is divided into two separate two-dimensional sections according to a certain angle, so the complex three-dimensional electromagnetic environmental simulation problem is simplified into a two-dimensional simulation problem, then, an initial field of a quasi three-dimensional method is built from an antenna pattern, the complex geographical environment and the complex environment of an atmospheric structure are three-dimensionally sectioned, then, the solving process of the sectioned two-dimensional sections is accelerated through adopting a coarsness parallel computing method, the electromagnetic field distribution of the three-dimensional space is efficiently solved finally, and moreover, precision is not greatly lost. By the method, the electromagnetic field distribution of the space can be obtained without practical measurement, compared with a direct three-dimensional computing method, the computational complexity is greatly reduced, the computational scope is expanded to a larger extent, the computational efficiency is greatly improved, and strong basis is provided for the practical application requirement.

Description

technical field [0001] The invention relates to a quasi-three-dimensional electromagnetic environment model construction and parallel method based on parabolic equations, that is, supported by technologies such as electromagnetic propagation and partial differential equation solving, to solve complex electromagnetic environment simulation problems, such as radar early warning, system confrontation, wireless communication A new electromagnetic environment simulation computing system for the purpose of network optimization, GPS positioning, etc., belongs to the computer field. Background technique [0002] With the development of electronic technology and the wide application of electronic equipment, electromagnetic environment simulation technology has been paid more and more attention. Electromagnetic environment simulation is of great significance for multi-base system radar research, electronic countermeasures, reliability analysis of navigation and guidance systems, ratio...

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Problems solved by technology

[0005] Purpose of the invention: Aiming at the problems of low efficiency and small calculation range of the three-dimensional electromagnetic environment simulation method, a quasi-three-dimensional electromagnetic environment model construction and parallel method based on the parabolic equation is provided. Because the slice method adopted can simplify the complex three-dimensional calculation problem into The two-dimensional calculation problem greatly reduces the computational complexity and expands the calculation range to a greater extent. At the same time, due to the introduction of parallel computing, the efficiency of the calculation process is greatly improved, and the final data accuracy can well meet the actual application requirements. need

[0006] The invention proposes a quasi-three-dimensional electromagnetic environment model construction and parallel method based on parabolic equations, which solves the requirements for three-dimensional distribution of electromagnetic fields in complex environments such as radar early warning, system confrontation, wireless communication network optimization, and GPS positioning.

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