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大疆無(wú)人機(jī)目標(biāo)紅外輻射特性測(cè)量及溫度反演

發(fā)布時(shí)間:2019-05-13 23:06
【摘要】:隨著無(wú)人機(jī)技術(shù)在各個(gè)領(lǐng)域嶄露頭角,無(wú)人機(jī)目標(biāo)在紅外波段的輻射特性成為人們非常關(guān)注的問(wèn)題。本文首先對(duì)中、長(zhǎng)波紅外探測(cè)器進(jìn)行輻射定標(biāo),針對(duì)飛行中的無(wú)人機(jī)目標(biāo)的輻射特性進(jìn)行測(cè)量,對(duì)飛行狀態(tài)下的無(wú)人機(jī)目標(biāo)的溫度進(jìn)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(jìn)行探測(cè),結(jié)合實(shí)測(cè)數(shù)據(jù)對(duì)上述各種方法進(jìn)行了分析對(duì)比,對(duì)測(cè)量結(jié)果進(jìn)行了精度分析并給出誤差源。結(jié)果表明,實(shí)驗(yàn)中的無(wú)人機(jī)中波輻射強(qiáng)度約為0.04W/sr、長(zhǎng)波輻射強(qiáng)度在0.5 W/sr左右,采用基于黑體校正的雙波段測(cè)量方法能極大提高無(wú)人機(jī)目標(biāo)溫度反演的精度。反演溫度的絕對(duì)誤差降低至2 K,相對(duì)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(guó)科學(xué)院紅外探測(cè)與成像技術(shù)重點(diǎn)實(shí)驗(yàn)室;中國(guó)科學(xué)院大學(xué);中國(guó)科學(xué)院上海技術(shù)物理研究所;
【基金】:國(guó)家“十二五”國(guó)防預(yù)研項(xiàng)目(41101050501) 上海市現(xiàn)場(chǎng)物證重點(diǎn)實(shí)驗(yàn)室基金資助項(xiàng)目(2011xcwzk04)
【分類號(hào)】:TN215;V279


本文編號(hào):2476250

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