本文選題：月球　切入點(diǎn)：嫦娥1號(hào)　出處：《中國(guó)地質(zhì)大學(xué)(北京)》2012年博士論文

【摘要】：經(jīng)國(guó)家天文臺(tái)授權(quán)，中國(guó)地質(zhì)大學(xué)（北京）使用嫦娥1號(hào)衛(wèi)星遙感數(shù)據(jù)。本論文以中國(guó)地質(zhì)大學(xué)（北京）和國(guó)家天文臺(tái)合作“繞月探測(cè)工程科學(xué)數(shù)據(jù)應(yīng)用與研究”（863計(jì)劃）重點(diǎn)項(xiàng)目為依托，進(jìn)行遙感信息提取，構(gòu)建全月球虛擬現(xiàn)實(shí)，開展科學(xué)研究。 本文在獲得的400軌嫦娥1號(hào)激光高度計(jì)測(cè)高數(shù)據(jù)（2B數(shù)據(jù)）和CCD立體相機(jī)影像基礎(chǔ)上開展遙感信息提取與處理工作。該批數(shù)據(jù)是根據(jù)衛(wèi)星軌道數(shù)據(jù)進(jìn)行高程解算，經(jīng)過高程、幾何校準(zhǔn)后的科學(xué)數(shù)據(jù)。首先把這批數(shù)據(jù)進(jìn)行高程換算，再導(dǎo)入ERDAS，利用ERDAS軟件及數(shù)據(jù)內(nèi)插法生成高分辨率全月球DEM模型。 在高分辨率全月球DEM模型基礎(chǔ)上，進(jìn)一步進(jìn)行信息提取與處理工作，構(gòu)建全月球虛擬現(xiàn)實(shí)。首先對(duì)月球表面進(jìn)行三維模型構(gòu)建，導(dǎo)入立體相機(jī)影像，再利用Super3Deditor平臺(tái)渲染成月面真三維虛擬現(xiàn)實(shí)場(chǎng)景。全月球虛擬現(xiàn)實(shí)的構(gòu)建為月球科學(xué)的研究提供了嶄新的技術(shù)手段，在全月球虛擬現(xiàn)實(shí)中可以進(jìn)行更深層次的信息提取與處理工作，如任意漫游、測(cè)量、標(biāo)注、截圖等工作。全月球虛擬現(xiàn)實(shí)成為月球信息提取與處理的高等級(jí)技術(shù)手段。本論文的主要成果與創(chuàng)新可以概括如下： 1、基于嫦娥1號(hào)衛(wèi)星激光高度計(jì)數(shù)據(jù)，建立高分辨率DEM模型 對(duì)于激光高度計(jì)數(shù)據(jù)信息進(jìn)行提取與處理，把得到的400軌激光高度計(jì)數(shù)據(jù)進(jìn)行高程換算，處理奇異數(shù)據(jù)，得到文本高程文件。導(dǎo)入ERDAS進(jìn)行數(shù)據(jù)處理、內(nèi)插運(yùn)算，得到了全月球DEM（數(shù)字高程模型）影像。空間分辨率：緯度方向（沿經(jīng)線）607m，經(jīng)度方向（沿緯線）303m。輸出全月球DEM模型。 2、構(gòu)建全月球真三維虛擬現(xiàn)實(shí) 以全月球DEM模型為基礎(chǔ)，構(gòu)建全月球虛擬現(xiàn)實(shí)。月球三維模型構(gòu)建是個(gè)人工（或者自動(dòng)）幾何建模的過程，幾何建模構(gòu)建的是形狀和紋理，月球DEM規(guī)定了月球模型的形狀，月球影像決定了月球模型的紋理。幾何模型的形狀(多邊形、三角形、頂點(diǎn)和樣條)構(gòu)成有限制，紋理大小也有限制，月球三維模型的構(gòu)建過程就是不斷的DEM重采樣和影像的切割與提取的過程。每個(gè)級(jí)別的三維模型的切割塊數(shù)決定了文件數(shù)目。當(dāng)瀏覽月球三維模型的時(shí)候，模型加載是逐級(jí)變化的。利用嫦娥1號(hào)所搭載的三線陣CCD相機(jī)所拍攝的經(jīng)過經(jīng)輻射、幾何、光度校正后的1082軌數(shù)據(jù)產(chǎn)品（CCD 2C數(shù)據(jù)），拼接的全月影像圖進(jìn)行貼圖，設(shè)置參數(shù)渲染生成月面真三維虛擬現(xiàn)實(shí)。全月球虛擬現(xiàn)實(shí)成為月面信息提取的全新技術(shù)手段。 3、利用全月球虛擬現(xiàn)實(shí)進(jìn)行月面信息提取 以Super3Deditor為搭載平臺(tái)的全月球虛擬現(xiàn)實(shí)操作系統(tǒng)支持任意漫游、高度測(cè)量、地面距離測(cè)量、直線距離測(cè)量、面積測(cè)量、斜率測(cè)量、截圖、作標(biāo)記等工作。本文對(duì)于月面重要目標(biāo)在虛擬場(chǎng)景中作了標(biāo)注，截取了部分虛擬場(chǎng)景圖像。任意選擇月面50座撞擊坑進(jìn)行直徑測(cè)量，驗(yàn)證d = k_dD~n，d多項(xiàng)式關(guān)系，d為撞擊坑深度，D為撞擊坑直徑，求得n = 1.9。選擇了柏拉圖月溪、阿爾卑斯峽谷做了長(zhǎng)度測(cè)量。 4、利用全月球虛擬現(xiàn)實(shí)顯示奇異數(shù)據(jù)并分析——尋找新的研究領(lǐng)域 對(duì)于激光高度計(jì)2B數(shù)據(jù)中存在的偶然誤差產(chǎn)生原因進(jìn)行了理論分析，分析得出月面坡度越大，，奇異數(shù)據(jù)產(chǎn)生越多；月面坡度頻繁變化，會(huì)產(chǎn)生大量奇異數(shù)據(jù)。全月球虛擬現(xiàn)實(shí)成為顯示奇異數(shù)據(jù)的很好技術(shù)，在全月球虛擬現(xiàn)實(shí)中奇異高程數(shù)據(jù)被很好地顯示出來，并可以進(jìn)行深層次分析。奇異數(shù)據(jù)按緯度主要分布在低緯（30°N→-30°S）和高緯（70°N→90°N、-70°S→-90°S）。按經(jīng)度分析在0°→30°W之間出現(xiàn)一個(gè)峰值（20°W左右）。而在20°W左右的赤道以南地區(qū)的中緯度出現(xiàn)的錯(cuò)誤數(shù)據(jù)峰值，與第谷撞擊坑的輻射紋重合，在虛擬現(xiàn)實(shí)中進(jìn)行研究發(fā)現(xiàn)，該輻射紋深度大且結(jié)構(gòu)復(fù)雜。奇異數(shù)據(jù)的產(chǎn)生在一定程度上反映了月面地形的復(fù)雜程度，而表面地形在很大程度上受制于地下的構(gòu)造情況影響，對(duì)于奇異數(shù)據(jù)的分析有利于月球地質(zhì)構(gòu)造的解譯。這是種新的研究領(lǐng)域。 5、發(fā)現(xiàn)了Google Moon的嚴(yán)重錯(cuò)誤 登陸Google Moon網(wǎng)站（http://earth.google.com/moon/）發(fā)現(xiàn)月球上標(biāo)記的南北回歸線為23°26′（同地球南北回歸線），與事實(shí)不符，發(fā)生嚴(yán)重錯(cuò)誤。月球上北回歸線為1°32′N，南回歸線為1°32′S，這也就是月球上一年中太陽光直射變化的緯度范圍。
[Abstract]:Authorized by the National Astronomical Observatory, China University of Geosciences (Beijing) using the Chang'e 1 satellite remote sensing data. In this thesis, China University of Geosciences (Beijing) and the national astronomical observatories around the research and application of science and engineering data of lunar exploration "(863 Program) key projects based on Remote Sensing Information extraction, construction of a full moon virtual reality, carry out scientific research.
The 400 rail Chang obtained No. 1 laser altimeter altimetry data (2B data) and CCD stereo camera images based on remote sensing information extraction and processing. The data is based on satellite orbit data of the Gao Cheng solution, after Gao Cheng, the scientific data geometry after calibration. The first batch of data conversion of Gao Cheng. And then import ERDAS, produced by high resolution full moon DEM model of ERDAS software and data interpolation.
Based on high resolution full moon DEM model, further extraction and processing of information, the construction of virtual reality. The first full moon of the lunar surface for 3D model construction, into a stereoscopic camera image, and then use the Super3Deditor platform into real 3D virtual reality scene lunar full moon. The construction of virtual reality provides a new technical means for the study of lunar science, at the full moon in the virtual reality of information extraction and processing work deeper, such as free roaming, measurement, annotation, screenshots and other work. The full moon of virtual reality technology become the high level information extraction and processing of the moon. The main results and innovation of this thesis can be summarized as follows:
1, based on Chang'e 1 satellite laser altimeter data, a high resolution DEM model is established.
Extraction and processing for laser altimeter data, the 400 track laser altimeter data obtained by elevation conversion, singular data, text files into ERDAS. The elevation data processing, interpolation, the full moon DEM (digital elevation model). The image spatial resolution: latitude direction (along the longitude) 607m. The longitude direction (along the latitude) 303m. output full moon DEM model.
2, building the true three-dimensional virtual reality of the whole moon
The full moon on the basis of DEM model, build a full moon. The moon to build 3D model of virtual reality is a manual (or automatic) geometric modeling, geometric modeling is the construction of the shape and texture of the moon, the moon DEM the shape of the model, the moon image determines the moon model texture. The geometric model of shape (polygon, triangle, vertex and spline) which is limited, there are restrictions on grain size, cutting process of construction process of 3D model the moon is to keep the DEM resampling and image extraction and 3D model. Each level of cutting blocks determines the number of files. When browsing 3D models of the moon, the model is loaded step by step change. The Chang'e 1 is equipped with three line array CCD camera after the radiation, the geometric, photometric correction after track 1082 data products (CCD 2C data), the image mosaic paste Figure, setting up parameter rendering to generate real 3D virtual reality of the moon surface. The whole moon virtual reality becomes the new technical means of extracting the information of the moon.
3, using the full moon virtual reality to extract the information from the moon
Super3Deditor is a full moon in virtual reality operating system platform supports arbitrary roaming, ground height measurement, distance measurement, distance measurement, area measurement, slope measurement, screenshots, marking etc. This paper for lunar important target in the virtual scene are labeled and interception of part of the virtual scene image. Choose the moon 50 a crater diameter measurement, verification of D = k_dD~n, D polynomial relationship, D crater depth, D crater diameter, obtained n = 1.9. chose Platon Creek, the alpine valleys made length measurements.
4, using the full moon virtual reality to display singular data and analysis - to find new fields of research
For the reason of accidental error exists in the 2B laser altimeter data is analyzed in theory, analysis of the lunar slope is greater, the singular data generated more frequent changes; the surface slope, will produce a large number of singular data. Virtual reality becomes a full moon show good technology singular data, in the full moon in the virtual reality singular elevation data is good show, and can carry out deep analysis. The singular data according to latitude mainly in low latitude (30 ~ N, -30 ~ S) and high (70 ~ N, 90 ~ N, -70 ~ S, -90 ~ S). According to the analysis of longitude appeared a peak between 0 degrees to 30 degrees W (20 degrees W). The error data and the peak value at about 20 DEG W in the equatorial latitudes in the southern area, and the radiation pattern of coincidence crater Tycho, were found in the virtual reality, the radiation pattern depth is large and complex structure. The production of singular data in some degree Degree reflects the complexity of the lunar topography, and the surface topography is largely influenced by the underground structure. The analysis of the singular data is conducive to the interpretation of the lunar geological structure. This is a new research field.
5, a serious mistake in Google Moon was found
On the Google Moon website (http://earth.google.com/moon/) found on the moon marked tropic is 23 degrees 26 '(with earth tropic), inconsistent with the facts, serious mistakes. The Tropic of cancer is 1 degrees 32' N, Capricorn is 1 degrees 32 'S, this is the sun direct change on the moon of the year latitude.

【學(xué)位授予單位】：中國(guó)地質(zhì)大學(xué)(北京)
【學(xué)位級(jí)別】：博士
【學(xué)位授予年份】：2012
【分類號(hào)】：P184.5;P237

【引證文獻(xiàn)】

相關(guān)碩士學(xué)位論文 前1條

1 陳曉英;虛擬旅游系統(tǒng)的功能設(shè)計(jì)與實(shí)現(xiàn)[D];首都師范大學(xué);2013年

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