星載集成傳感器定向關(guān)鍵技術(shù)研究
本文選題:高分辨率衛(wèi)星遙感影像 切入點(diǎn):集成傳感器定向 出處:《解放軍信息工程大學(xué)》2013年博士論文
【摘要】:本文主要針對(duì)高分辨遙感衛(wèi)星線陣CCD影像高精度集成傳感器定向涉及的理論和關(guān)鍵技術(shù)進(jìn)行了深入的分析和研究,論文完成的主要工作有:1.將星載定位定姿設(shè)備觀測(cè)的數(shù)據(jù)作為觀測(cè)值,建立了描述外方位元素變化的一般多項(xiàng)式模型、定向片模型和分段多項(xiàng)式模型,為星載集成傳感器定向及在軌檢校奠定了理論基礎(chǔ)。2.通過對(duì)高分辨率遙感衛(wèi)星線陣CCD影像成像幾何物理特性的分析和研究,實(shí)現(xiàn)了單線陣CCD和三線陣CCD模擬數(shù)據(jù)的生成,為后續(xù)基于模擬數(shù)據(jù)的攝影測(cè)量參數(shù)動(dòng)態(tài)檢測(cè)理論的驗(yàn)證提供了數(shù)據(jù)基礎(chǔ)。3.構(gòu)建了三種高分辨衛(wèi)星遙感影像嚴(yán)格幾何成像模型,并利用集成傳感器直接定向方法使用獲取的真實(shí)影像數(shù)據(jù)驗(yàn)證了構(gòu)建的嚴(yán)格幾何成像模型的正確性;考慮到衛(wèi)星定姿數(shù)據(jù)存在系統(tǒng)誤差,針對(duì)不同的高分辨率衛(wèi)星遙感影像數(shù)據(jù)分別構(gòu)建了姿態(tài)角常差檢校模型和姿態(tài)四元數(shù)系統(tǒng)誤差檢驗(yàn)?zāi)P?并用實(shí)驗(yàn)驗(yàn)證了姿態(tài)角系統(tǒng)誤差補(bǔ)償?shù)挠行院驼_性。4.考慮到衛(wèi)星發(fā)射及在軌運(yùn)行會(huì)使實(shí)驗(yàn)室檢校參數(shù)不再適用的實(shí)際情況,提出了攝影測(cè)量?jī)?nèi)部參數(shù)標(biāo)定模型和外部參數(shù)標(biāo)定模型,并用模擬數(shù)據(jù)驗(yàn)證了攝影測(cè)量?jī)?nèi)部參數(shù)解算模型的正確性,并實(shí)現(xiàn)了三種高分辨率衛(wèi)星遙感影像基于地面檢校場(chǎng)的攝影測(cè)量參數(shù)解算,實(shí)驗(yàn)表明,經(jīng)過攝影測(cè)量參數(shù)動(dòng)態(tài)檢測(cè)可有效提高高分辨率衛(wèi)星遙感影像直接對(duì)地目標(biāo)定位精度。5.將建立的外方位元素模型引入光束法平差中,研究了基于一般多項(xiàng)式模型、分段多項(xiàng)式模型和定向片模型的星載集成傳感器定向理論,通過多組實(shí)驗(yàn)數(shù)據(jù)、多種控制點(diǎn)分布方案、分段多項(xiàng)式模型不同分段數(shù)、定向片模型不同定向片數(shù)等實(shí)驗(yàn)方案對(duì)高分辨率衛(wèi)星遙感影像平差精度進(jìn)行比較,并對(duì)比分析了攝影測(cè)量參數(shù)動(dòng)態(tài)檢測(cè)前和檢測(cè)后星載集成傳感器定向所達(dá)到的定位精度。6.針對(duì)標(biāo)定后殘留的系統(tǒng)誤差,對(duì)于不同的高分辨率遙感衛(wèi)星成像傳感器合理的選擇附加參數(shù),建立了星載集成傳感器在軌檢校模型,為高分辨率衛(wèi)星遙感影像幾何處理提供了一種新的處理流程。
[Abstract]:In this paper, the theory and key technology of high precision integrated sensor orientation for high resolution remote sensing satellite linear array CCD image are analyzed and studied deeply. The main work accomplished in this paper is: 1. Taking the observation data of spaceborne positioning and attitude determination equipment as the observation value, the general polynomial model, the directional slice model and the piecewise polynomial model are established to describe the change of external azimuth elements. It lays a theoretical foundation for spaceborne integrated sensor orientation and on-orbit calibration. By analyzing and studying the geometric and physical characteristics of high-resolution remote sensing satellite linear array CCD images, the generation of single-line CCD and three-line CCD simulation data is realized. 3. Three strict geometric imaging models of high resolution satellite remote sensing image are constructed, which provide a data basis for the subsequent verification of photogrammetric parameter dynamic detection theory based on simulated data. The validity of the strict geometric imaging model is verified by using the real image data obtained by using the direct orientation method of the integrated sensor, and considering the systematic error of the satellite attitude determination data, Aiming at different high resolution satellite remote sensing image data, the attitude angle constant error calibration model and attitude quaternion system error test model are constructed respectively. The validity and correctness of the error compensation of attitude angle system is verified by experiments. Considering the fact that satellite launch and in-orbit operation will make the calibration parameters of the laboratory no longer applicable, The internal parameter calibration model and external parameter calibration model of photogrammetry are proposed, and the correctness of the internal parameter calculation model of photogrammetry is verified by simulation data. Three kinds of high resolution satellite remote sensing images based on ground calibration field are realized to calculate the photogrammetric parameters. The experimental results show that, Dynamic detection of photogrammetric parameters can effectively improve the positioning accuracy of high resolution satellite remote sensing images directly to the ground target. The external azimuth element model is introduced into the beam method adjustment, and the general polynomial model is studied. Spaceborne integrated sensor orientation theory based on piecewise polynomial model and direction-slice model, through multi-group experimental data, various control point distribution schemes, different piecewise polynomial model of different piecewise number, The adjustment accuracy of high resolution satellite remote sensing image was compared by different experiment schemes, such as the number of directional slices, and so on. The orientation accuracy of spaceborne integrated sensor before and after the dynamic detection of photogrammetric parameters is compared and analyzed. 6. Aiming at the residual system error after calibration, For different high-resolution remote sensing satellite imaging sensors, an on-orbit calibration model of space-borne integrated sensors is established, which provides a new processing flow for geometric processing of high-resolution satellite remote sensing images.
【學(xué)位授予單位】:解放軍信息工程大學(xué)
【學(xué)位級(jí)別】:博士
【學(xué)位授予年份】:2013
【分類號(hào)】:P237
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