The calculation theory of differential model for the infrared radiation characteristics of the high-altitude high-speed unmanned-aerial-vehicle plume

Jianjun Shi; Yang Zhao; Xu Li

doi:10.1117/12.2643640

16 December 2022 The calculation theory of differential model for the infrared radiation characteristics of the high-altitude high-speed unmanned-aerial-vehicle plume

Jianjun Shi, Yang Zhao, Xu Li

Author Affiliations +

Proceedings Volume 12324, Infrared, Millimeter-Wave, and Terahertz Technologies IX; 123240N (2022) https://doi.org/10.1117/12.2643640
Event: SPIE/COS Photonics Asia, 2022, Online Only

Abstract

The jet high-altitude high-speed unmanned-aerial-vehicle(UAV) plume is the main source of infrared radiation and has special radiation characteristics compared with that of human aircraft，and is one of the anti-stealth technology points. In order to master the infrared radiation characteristics of high-altitude and high-speed UAV plume independently, and facilitate the design of subsequent algorithms and apply artificial intelligence technology to autonomous recognition and tracking, the authors make a systematic and comprehensive study on it. This paper is one of the important parts of the research. Geometric model of turbojet engine nozzle is established by Gambit software. The flow field of high-altitude high-speed UAV plume is numerically simulated by Fluent software. Considering airframe shading, infrared radiation intensity distribution of UAV plume is calculate by using spectral line Lorentz Broadening Effect and Doppler Broadening Effect in single-line spectral band theory(SLG). In this paper, the attenuation of infrared radiation in the atmosphere is calculated by the method of slope path transmission equivalent. The distribution of infrared radiation intensity of typical high-altitude high-speed UAV after atmospheric attenuation under different working conditions, different azimuth angle and observation elevation angle is calculated, and the influence of flight attitude of UAV on the distribution of infrared radiation intensity of its plume is analyzed.

Conference Presentation

Citation Download Citation

Jianjun Shi, Yang Zhao, and Xu Li "The calculation theory of differential model for the infrared radiation characteristics of the high-altitude high-speed unmanned-aerial-vehicle plume", Proc. SPIE 12324, Infrared, Millimeter-Wave, and Terahertz Technologies IX, 123240N (16 December 2022); https://doi.org/10.1117/12.2643640

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available