Investigating Detectability of Infrared Radiation Based on Image Evaluation for Engine Flame

Entropy

Meihui Li¹  Zhenming Peng¹  Xingrun Liu²  Xia Li²  Jun Wang² 

[1] School of Information and Communication Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China;The Science and Technology on Optical Radiation Laboratory, Beijing 100854, China;

关键词: atmosphere background;    engine flame;    infrared radiation;    detectability;    image quality evaluation;   

DOI  :  10.3390/e21100946

来源: DOAJ

【 摘 要 】

Aiming at the application requirements of infrared detection, the influence of earth background interference on plume radiation detection is investigated and discussed in this article. The infrared image of the earth’s atmospheric background radiation is simulated by the spectral correlation based on the conversion model of the surface radiation with different bands. The infrared radiation image of the jet flame and the background is generated by overlapping the infrared radiation of the engine flame and the background radiation according to the detection angle of view. Through the image quality evaluation model, the detectability of the flame is analyzed. The simulating results show that the comprehensive statistical features such as image information entropy, variance and signal-to-clutter ratio can be used to evaluate the detectability of the engine flame.

【 授权许可】

Unknown