Effects of alumina particle clusters on UV radiation signature in the aircraft plume

Zhang, Danmeng; Liu, Bai

doi:10.1016/j.jqsrt.2020.107082

Cited by 9 publications

(4 citation statements)

References 17 publications

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“…During the simulation, the aircraft's plume is modeled as a three-dimensional axisymmetric finite-length cylindrical model as shown in Figure 1. The distributions of the extinction coefficient, temperature, and chemiluminescence radiation emission coefficient within the plume region were obtained from references [7] and interpolated to achieve the threedimensional spatial distribution of the plume flow field [8] . The length of the plume model was selected to be 0.8m, with the cross-sectional radius of the plume model being 0.1m.…”

Section: Resultsmentioning

confidence: 99%

Study on the ultraviolet polarized radiation characteristics of solid rocket motor plumes

Li,

Bai,

Shi

et al. 2024

Second Conference on Space, Atmosphere, Marine, and Environmental Optics (SAME 2024)

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In recent years, with the rapid development of military combat technology worldwide, research on target detection and identification has deepened, integrating polarization characteristics with the intensity information of plumes to enhance the detection and identification performance of aerial targets from multiple dimensions. This article studies the spatial distribution characteristics of ultraviolet polarized radiation in gas-solid two-phase flow plumes through the improved Spherical Harmonic Discrete Ordinate Method (SHDOM). Adjustments were made to SHDOM to suit the complex environment of plumes, and the spatial distribution cloud diagram of Stokes parameters in solid rocket motor plumes was analyzed through simulation. Simulation results indicate that the overall spatial distribution of polarized radiation components in two-phase flow plumes is similar, but the positions of the internal peaks differ; the detection zenith angle directly impacts the distribution characteristics of polarized radiation in the plume, with all polarized radiation components in the plume increasing as the detection angle increases. These improvements and studies deepen the understanding of the polarization radiation characteristics of vehicle plumes, providing an important theoretical basis for enhancing the precision of plume detection and analysis.

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Section: Resultsmentioning

confidence: 99%

Study on the ultraviolet polarized radiation characteristics of solid rocket motor plumes

Li,

Bai,

Shi

et al. 2024

Second Conference on Space, Atmosphere, Marine, and Environmental Optics (SAME 2024)

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“…In the field of UV detection technology, Zhang et al 4 calculated the UV radiation of the tail flame based on the simulation results of the plume field of the aircraft and proposed a UV imaging detection scheme for the target tail flame.Huang et al 5 studied the mechanism of the UV radiation of the missile tail flame and calculated the UV radiation characteristics of the missile tail flame under the atmospheric background by using the Lowtran 7 software. As for the combination of UV and radar, Gao Fei et al 6 designed a UV multi-longitudinal mode high spectral resolution lidar system.…”

Section: Introductionmentioning

confidence: 99%

Research on radar-ultraviolet cooperative detection algorithm for lower RCS targets

Qiang,

Li,

Chen

2024

Fifteenth International Conference on Signal Processing Systems (ICSPS 2023)

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With the rapid development of new stealth technology and materials for aircraft, the traditional radar detection technology faces many difficulties in the detection of lower RCS targets. In order to improve the detection accuracy of space targets, this paper adopts the radar-ultraviolet cooperative detection method based on the radar working principle and ultraviolet radiation theory, and proposes a radar-ultraviolet cooperative detection algorithm for lower RCS targets. This paper takes the DF-15 missile as an example, and studies the radar-ultraviolet cooperative detection results of the missile in the detection of lower RCS characteristics, and the results show that when encountering the lower RCS target characteristics, the leakage detection rate is higher when only using radar detection, while the radar-ultraviolet cooperative detection can improve the accuracy of the target recognition, and the leakage detection rate is lower.

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“…Missiles mainly propelled by solid or liquid fuels can produce UV radiation in the process of flying, originating from three sources: (i) the unburned solid fuel particles in the exhaust plume of the missiles during flight will mix with the air outside the engine and secondary combustion occurs, resulting in high temperature particle radiation. 5 (ii) The chemical luminescence caused by CO-O recombination will also be emitted during the secondary combustion of unburned fuel. 6 (iii) The skin of the missile rigging and tank emits UV radiation by friction with the atmosphere during the reentry segment.…”

Section: Introductionmentioning

confidence: 99%

AlGaN-based solar-blind UV heterojunction bipolar phototransistors: structural design, epitaxial growth, and optoelectric properties

et al. 2023

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Effects of alumina particle clusters on UV radiation signature in the aircraft plume

Cited by 9 publications

References 17 publications

Study on the ultraviolet polarized radiation characteristics of solid rocket motor plumes

Study on the ultraviolet polarized radiation characteristics of solid rocket motor plumes

Research on radar-ultraviolet cooperative detection algorithm for lower RCS targets

AlGaN-based solar-blind UV heterojunction bipolar phototransistors: structural design, epitaxial growth, and optoelectric properties

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