一种多光谱热成像系统作用距离的预测方法

doi:10.3969/j.issn.1001-2400.2013.02.025

Abstract

Abstract:

A method for predicting the operating range of multispectral thermal imaging systems with a distributed fusion architecture is proposed by utilizing the Triangle Orientation Discrimination (TOD) performance model. Specifically, by considering the facts that the apparent target/background differential temperatures in different wavebands are inconsistent because of the effect of atmospheric attenuation on the radiation of a target and that a fusion rule has an impact on the performance of the system, the calculation process of atmospheric transmittance and the concrete fusion rule are introduced into the TOD performance model of the system. And the direct comparison between the inherent target/background differential temperature and a TOD threshold is made. According to the TOD criteria for different discrimination levels, the relations of the reciprocal angular subtense of a triangle pattern and the range of the system to a triangle pattern are achieved when these two values are equal and the target acquisition ranges are obtained by solving these equations. The validation by the experimental results and simulation images suggests that this approach can predict the operating range of multispectral thermal imaging systems efficiently.

Key words: multispectral, thermal imaging systems, operating range, triangle orientation discrimination, performance model

CLC Number:

TN216

LIU Xin;ZHANG Jianqi;WANG Xiaorui;LIU Dongdong;ZHANG Fudi. Method for predicting the operating range of multispectral thermal imaging systems[J].J4, 2013, 40(2): 153-158.

References

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Method for predicting the operating range of multispectral thermal imaging systems

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