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Super electrically large size strong electromagnetic pulse environment time-frequency-space multi-dimensional analysis model

A multi-dimensional analysis model and electric large-scale technology, applied to radio wave measurement systems, instruments, etc.

Inactive Publication Date: 2015-09-16
HARBIN ENG UNIV
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Problems solved by technology

[0006] The purpose of the present invention is to propose a time-frequency-space multi-dimensional analysis model of a super-electric large-scale strong electromagnetic pulse environment, using ray tracing and electromagnetic simulation to solve the problem of calculating the electromagnetic environment distribution characteristics of super-electric large-scale objects under the attack of electromagnetic pulse weapons

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  • Super electrically large size strong electromagnetic pulse environment time-frequency-space multi-dimensional analysis model
  • Super electrically large size strong electromagnetic pulse environment time-frequency-space multi-dimensional analysis model
  • Super electrically large size strong electromagnetic pulse environment time-frequency-space multi-dimensional analysis model

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Embodiment Construction

[0018] For ultra-electric large-size targets, based on the ray tracing method, electromagnetic waves of a certain frequency can be equivalent to multiple rays. Through related modeling software, the geometric model of ultra-electric large-size objects can be established, and the geometric model can be imported into the electromagnetic simulation software. The surface element subdivision method is used to generate the corresponding electromagnetic model; after the superelectric large-scale object model is established, it is necessary to carry out accurate electromagnetic modeling of the complex structure: use triangular and quadrilateral plane slices to fit the surface of the superelectric large-scale object, and section it Divided into a surfel grid. At the same time, since the size of the bin mesh directly affects the efficiency and accuracy of numerical calculations, during the modeling process, the ultra-electric large-scale objects are layered and subdivided. For complex st...

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Abstract

The invention discloses a super electrically large size strong electromagnetic pulse environment time-frequency-space multi-dimensional analysis model. Frequency-time conversion is carried out by utilizing a ray-tracing electromagnetic pulse reconstruction method to establish a time-frequency-space multi-dimensional analysis model of a target region. The model comprises the following steps: 1) establishing a geometrical model of a super electrically large size object through related modeling software, selecting an appropriate surface element subdivision mode to generate a corresponding electromagnetic model, and electromagnetic simulation software calculating all ray paths reaching a receiving point; 2) extracting information of the ray paths and calculating a frequency domain field of each frequency of the receiving point based on a ray tracing method; and 3) obtaining time domain electromagnetic pulses at the receiving point through Fourier inverse transform. The multi-dimensional analysis model solves the problem of electromagnetic environment distribution character calculation of the super electrically large size object under the attack of an electromagnetic pulse weapon.

Description

technical field [0001] The invention relates to a time-frequency-space multidimensional analysis model of a super-electric large-scale strong electromagnetic pulse environment. It proposes an electromagnetic pulse reconstruction method using ray tracing for frequency-time transformation, and establishes a time-frequency-space multidimensional analysis model of the target area to solve the problem. The calculation problem of electromagnetic environment distribution characteristics of superelectric large-scale objects under the attack of electromagnetic pulse weapons is solved. Background technique [0002] A large amount of electronic equipment is equipped on a super-electric large-scale object. When faced with a complex electromagnetic environment under electromagnetic pulse radiation, the performance of the equipment will be degraded or even permanently damaged. At the same time, the induced current on the metal structure of the super-electric large-sized object caused by h...

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Application Information

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IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 姜弢曹小东李文兴段瀚林
Owner HARBIN ENG UNIV
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