An aerial dynamic infrared scene simulation system based on Unity3D

Abstract

The invention relates to the field of infrared imaging and computer simulation, and discloses an air dynamic infrared scene simulation system based on Unity3D. The system comprises an infrared characteristic simulation system, an atmospheric attenuation simulation system, a sky environment simulation system and a detector receiving imaging system. The sky environment simulation system comprises asky module, a cloud module and a time module. The detector receiving imaging system comprises a radiation intensity conversion module, a noise processing module and an integrated imaging module. The realization methods of the simulation system comprise 1 creating a three-dimensional model and calculate the infrared radiation characteristics; 2 creating an atmospheric transmittance database; 3 creating a dynamic sky environment; 4, visualizing that receiving unit and the simulation system of the analog detector. The present invention accurately calculates the infrared characteristics of a high-speed flying missile, combines a new generation graphics engine Unity3D, fuses a complex sky model, simulates and generates infrared video closer to real shooting, and generates a large number of testvideo for subsequent infrared target detection and tracking.

Description

technical field [0001] The invention relates to the fields of infrared imaging and computer simulation, in particular to a simulation system for missile targets and infrared scenes, and the method is suitable for infrared target detection and tracking in complex environments. Background technique [0002] In the development of related systems such as airborne infrared detection, land and sea infrared monitoring, and infrared seeker guidance, a large amount of infrared simulation data is required for development and testing. However, the generation of infrared images is difficult and expensive, especially it is difficult to obtain infrared images of a large number of high-speed moving missiles and aircraft, so such images mainly rely on simulation generation. [0003] In the infrared target and scene simulation tasks, the performance is limited due to the late start in China. The traditional infrared simulation system has the following problems: [0004] First, the tradition...

AI Technical Summary

Problems solved by technology

[0004] First, the traditional infrared simulation system is not a real infrared simulation, but superimposes infrared texture image information on the basis of visible light simulation, which is somewhat different from the texture in the infrared band

[0005] Second, the existing software is mainly used for simulation of single-frame infrared images, and its real-time performance is insufficient, so it is not suitable for dynamic scenes

[0006] Third, the existing software has few simulations for infrared scenes in air combat, especially the lack of complex environment features

[0007] Fourth, the existing software does not consider the absorption of electromagnetic waves by meteorological particles such as gas molecules, aerosols, rain and snow in the atmosphere, and the influence of the noise of the optical components of the detector at the receiving end

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