發(fā)布時間：2019-05-13 23:06

【摘要】：隨著無人機技術(shù)在各個領(lǐng)域嶄露頭角,無人機目標在紅外波段的輻射特性成為人們非常關(guān)注的問題。本文首先對中、長波紅外探測器進行輻射定標,針對飛行中的無人機目標的輻射特性進行測量,對飛行狀態(tài)下的無人機目標的溫度進行了反演,分別采用了單波段、雙波段比色法、基于黑體校正的雙波段法進行探測,結(jié)合實測數(shù)據(jù)對上述各種方法進行了分析對比,對測量結(jié)果進行了精度分析并給出誤差源。結(jié)果表明,實驗中的無人機中波輻射強度約為0.04W/sr、長波輻射強度在0.5 W/sr左右,采用基于黑體校正的雙波段測量方法能極大提高無人機目標溫度反演的精度。反演溫度的絕對誤差降低至2 K,相對誤差僅為0.5%左右。
[Abstract]:With the emergence of UAV technology in various fields, the radiation characteristics of UAV targets in infrared band have become a very concerned issue. In this paper, the radiation calibration of medium and long wave infrared detector is carried out, and the radiation characteristics of UAV target in flight are measured, and the temperature of UAV target in flight state is inversed, and the single band is adopted respectively. The dual-band colorimetric method is used to detect the method based on blackbody correction. Combined with the measured data, the above methods are analyzed and compared, and the accuracy of the measurement results is analyzed and the error source is given. The results show that the medium wave radiation intensity of UAV is about 0.04W and the long wave radiation intensity is about 0.5W. the dual-band measurement method based on blackbody correction can greatly improve the accuracy of UAV target temperature inversion. The absolute error of inversion temperature is reduced to 2 K, and the relative error is only about 0.5%.
【作者單位】： 中國科學院紅外探測與成像技術(shù)重點實驗室;中國科學院大學;中國科學院上海技術(shù)物理研究所;
【基金】：國家“十二五”國防預研項目(41101050501) 上海市現(xiàn)場物證重點實驗室基金資助項目(2011xcwzk04)
【分類號】：TN215;V279
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本文編號：2476250