一種高星等標(biāo)準(zhǔn)星光模擬器的設(shè)計與性能分析
發(fā)布時間:2018-09-18 12:28
【摘要】:在衛(wèi)星探測相機及星敏感器的地面標(biāo)定實驗中,需要一臺能夠模擬無窮遠處極小星點以及極弱星光照度的光源,即星光模擬器。采用積分球均勻點光源加準(zhǔn)直平行光管模擬出無窮遠處的星點,使用可變光闌調(diào)節(jié)光能量動態(tài)范圍,提高模擬星等。同時點光源的光亮度可以精確測定,再通過精確測量影響星等照度的各個因素,從而解決弱光情況下的標(biāo)定問題。分析模擬器的模擬星等能力及精度,在現(xiàn)有加工測試條件下,星光模擬器能夠滿足模擬6~14星等照度要求且精度較高,完全滿足地面標(biāo)定實驗需求。
[Abstract]:In the ground calibration experiment of the satellite detection camera and the star sensor, a starlight simulator is needed, which can simulate the minimum star and the very weak illumination of the star at infinity. A uniform point light source with an integral sphere and a collimated parallel light tube are used to simulate the stars at infinity, and a variable aperture is used to adjust the dynamic range of light energy to increase the magnitude of the simulated stars. At the same time, the luminance of the point light source can be measured accurately, and then the calibration problem under the condition of weak light can be solved by accurately measuring the various factors affecting the illumination of the star magnitude. The ability and precision of simulating star magnitude are analyzed. Under the existing processing and testing conditions, the starlight simulator can meet the requirements of emulation 614 magnitude illuminance and the accuracy is higher, and fully meet the requirements of ground calibration experiment.
【作者單位】: 中國科學(xué)院西安光學(xué)精密機械研究所;中國科學(xué)院研究生院;
【基金】:國家863計劃項目(2006AA12Z133)
【分類號】:TH75;TN15
本文編號:2247924
[Abstract]:In the ground calibration experiment of the satellite detection camera and the star sensor, a starlight simulator is needed, which can simulate the minimum star and the very weak illumination of the star at infinity. A uniform point light source with an integral sphere and a collimated parallel light tube are used to simulate the stars at infinity, and a variable aperture is used to adjust the dynamic range of light energy to increase the magnitude of the simulated stars. At the same time, the luminance of the point light source can be measured accurately, and then the calibration problem under the condition of weak light can be solved by accurately measuring the various factors affecting the illumination of the star magnitude. The ability and precision of simulating star magnitude are analyzed. Under the existing processing and testing conditions, the starlight simulator can meet the requirements of emulation 614 magnitude illuminance and the accuracy is higher, and fully meet the requirements of ground calibration experiment.
【作者單位】: 中國科學(xué)院西安光學(xué)精密機械研究所;中國科學(xué)院研究生院;
【基金】:國家863計劃項目(2006AA12Z133)
【分類號】:TH75;TN15
【共引文獻】
相關(guān)碩士學(xué)位論文 前5條
1 梁桂榮;大景深白光顯示全息圖的研究[D];重慶大學(xué);2007年
2 張留朝;寬色域自適應(yīng)LED背光源研究[D];中國海洋大學(xué);2007年
3 毛益林;稀土摻雜隨角異色云母顏料的制備研究[D];武漢理工大學(xué);2007年
4 田莉;色度學(xué)在紅寶石顏色評定中的應(yīng)用[D];中國地質(zhì)大學(xué)(北京);2008年
5 張文明;小型星模擬器的研制方法和研制技術(shù)[D];電子科技大學(xué);2003年
【二級參考文獻】
相關(guān)期刊論文 前1條
1 魏新國,張廣軍,江潔;星敏感器中星圖圖像的星體細分定位方法研究[J];北京航空航天大學(xué)學(xué)報;2003年09期
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