Research of infrared stealth criterion of targets based on signal-to-noise ratio

Xuan Chen; Li Yang; Fengrui Sun

doi:10.1117/12.835667

5 August 2009 Research of infrared stealth criterion of targets based on signal-to-noise ratio

Xuan Chen, Li Yang, Fengrui Sun

Proceedings Volume 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications; 73834P (2009) https://doi.org/10.1117/12.835667
Event: International Symposium on Photoelectronic Detection and Imaging 2009, 2009, Beijing, China

Abstract

Systematic studies on the infrared stealth criterion of military targets are of great importance. At first, based on the radiation energy difference received by single target and background pixel, the expression of output signal-to-noise ratio (SNR) of detector was derived. Then, the effect of radiation contrast, integration time, distance between the target and detector and relative lateral velocity of targets on the output SNR of detector was analyzed. At last, the infrared stealth criterions of target in different wavebands were raised. The analysis and calculation results showed that for the infrared detector whose integration time was adjustable, the output SNR could be enhanced by extending the integration time. The SNR could be effectively reduced by controlling the radiation contrast of target and background so that infrared stealth would be realized. Target infrared stealth can be obtained by controlling the threshold contrasts C_th respectively less than 0.043 and 0.029 in 3 ~ 5μm and 8 ~ 14μm wavebands.

Citation Download Citation

Xuan Chen, Li Yang, and Fengrui Sun "Research of infrared stealth criterion of targets based on signal-to-noise ratio", Proc. SPIE 7383, International Symposium on Photoelectronic Detection and Imaging 2009: Advances in Infrared Imaging and Applications, 73834P (5 August 2009); https://doi.org/10.1117/12.835667

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