本文關(guān)鍵詞：多譜段光學(xué)遙感探測器配準(zhǔn)誤差分析　出處：《航天返回與遙感》2017年02期 　論文類型：期刊論文

  更多相關(guān)文章： 譜段配準(zhǔn) 配準(zhǔn)誤差 多譜段相機 光學(xué)遙感

【摘要】：多光譜相機獲取的同一目標(biāo)在不同譜段圖像中幾何位置不同,造成了多譜段圖像配準(zhǔn)誤差。而多譜段圖像譜段配準(zhǔn)問題是制約衛(wèi)星數(shù)據(jù)規(guī)�；c產(chǎn)業(yè)化應(yīng)用的重要因素之一。文章針對常見的同一光學(xué)系統(tǒng)多光譜成像模式,建立多譜段探測器配準(zhǔn)誤差模型,從空間相機設(shè)計角度考慮,僅考慮圖像之間的位置關(guān)系,分別分析延時成像及非延時成像時造成譜段配準(zhǔn)誤差的因素,以及各因素對多譜段圖像配準(zhǔn)的影響。多譜段圖像配準(zhǔn)誤差無延時成像時與各譜段像主點觀測精度有關(guān),延時成像時像主點位置觀測精度和姿態(tài)指向精度影響較大,衛(wèi)星速度觀測精度影響較小。最后根據(jù)地面圖像處理配準(zhǔn)誤差要求,仿真分析得出各引起配準(zhǔn)誤差因素的指標(biāo)要求,可以為多光譜遙感器的設(shè)計和應(yīng)用提供參考。
[Abstract]:The geometric position of the same target obtained by multispectral camera is different in different spectral images. The problem of multi-spectral image registration is one of the important factors restricting the scale and industrialization of satellite data. This paper aims at the common multi-spectral imaging mode of the same optical system. The registration error model of multi-spectral detector is established. Considering the space camera design only the position relationship between images is considered and the factors that cause the spectral registration error in delayed imaging and non-delayed imaging are analyzed respectively. And the influence of various factors on the multi-spectral image registration. When the multi-spectral image registration error is no delay imaging, it is related to the observation accuracy of the main points of each spectrum image. In delayed imaging, the position observation accuracy and attitude pointing accuracy of the image main point have a great influence, while the satellite velocity observation accuracy is less. Finally, according to the ground image processing registration error requirements. The results of simulation analysis show that the index requirements of the registration error factors can be used as a reference for the design and application of multispectral remote sensors.
【作者單位】： 北京空間機電研究所;
【基金】：國家自然基金(41401410,41401411) 高分對地觀測專項基金(GFZX040136) 國家重點研發(fā)計劃地球觀測與導(dǎo)航重點專項基金(2016YFB0500802)
【分類號】：P237
【正文快照】： 0引言光學(xué)遙感觀測技術(shù)需要多譜段對同一目標(biāo)區(qū)域進(jìn)行觀測,通過比較分析同一區(qū)域內(nèi)波譜特性差異對遙感圖像判讀解譯,提取信息。由于光學(xué)系統(tǒng)設(shè)計、探測器器件等原因,各譜段探測器在焦平面裝配時指向角不同,所以星載光學(xué)遙感器直接獲取的原始多譜段圖像各譜段間存在明顯的位置

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