本文選題：精密單點(diǎn)定位　切入點(diǎn)：海洋測(cè)量　出處：《解放軍信息工程大學(xué)》2013年碩士論文　論文類型：學(xué)位論文

【摘要】：本文對(duì)精密單點(diǎn)定位技術(shù)在海洋測(cè)量中的應(yīng)用進(jìn)行了深入研究，主要包括精密單點(diǎn)定位的原理與數(shù)學(xué)模型、解算結(jié)果的精度與可靠性評(píng)估以及該技術(shù)在海洋控制測(cè)量、無驗(yàn)潮水深測(cè)量和海洋重力測(cè)量中的應(yīng)用等方面的內(nèi)容。論文的主要工作和成果概括如下： 1.在分析精密單點(diǎn)定位技術(shù)原理及數(shù)學(xué)模型的基礎(chǔ)上，比較了三種觀測(cè)模型的主要區(qū)別，研究了影響精密單點(diǎn)定位精度的主要誤差源及減弱和消除各種誤差源的方法。 2.分別從內(nèi)符合和外符合兩方面對(duì)精密單點(diǎn)定位解算結(jié)果的精度進(jìn)行了評(píng)估，深入研究了重復(fù)測(cè)量法、等價(jià)法和分半法三種精密單點(diǎn)定位解算結(jié)果的可靠性評(píng)估方法，結(jié)合實(shí)例對(duì)三種方法進(jìn)行了比較分析，提出了提高精密單點(diǎn)定位解算結(jié)果精度和可靠性的措施。 3.將精密單點(diǎn)定位技術(shù)應(yīng)用于海洋控制測(cè)量，，分析了不同觀測(cè)時(shí)長和不同采樣間隔對(duì)靜態(tài)精密單點(diǎn)定位結(jié)果的影響，利用實(shí)測(cè)數(shù)據(jù)驗(yàn)證了精密單點(diǎn)定位在海洋控制測(cè)量中應(yīng)用的可行性，重點(diǎn)探討了遠(yuǎn)離大陸海島礁的高等級(jí)控制測(cè)量應(yīng)用問題。 4.將精密單點(diǎn)定位技術(shù)應(yīng)用于無驗(yàn)潮水深測(cè)量，利用精密單點(diǎn)定位技術(shù)確定了驗(yàn)潮站的大地高，通過實(shí)測(cè)數(shù)據(jù)計(jì)算得到了高精度的水深測(cè)量成果，有效解決了傳統(tǒng)差分定位方式作業(yè)范圍受到距離限制的難題。 5.將精密單點(diǎn)定位技術(shù)應(yīng)用于船載重力測(cè)量，通過比對(duì)基于精密單點(diǎn)定位測(cè)量模式和傳統(tǒng)單點(diǎn)定位測(cè)量模式解算的交叉點(diǎn)不符值結(jié)果，驗(yàn)證了精密單點(diǎn)定位技術(shù)在船載重力測(cè)量中應(yīng)用的可行性，解決了遠(yuǎn)海船載重力測(cè)量采用傳統(tǒng)單點(diǎn)定位精度較低的問題。 6.將精密單點(diǎn)定位技術(shù)應(yīng)用于機(jī)載海洋重力測(cè)量，通過分析比較幾種速度、加速度測(cè)量方法的優(yōu)缺點(diǎn)，結(jié)合海洋重力測(cè)量實(shí)際，確定了以位置差分法作為速度、加速度的測(cè)量方法。利用實(shí)測(cè)數(shù)據(jù)驗(yàn)證了精密單點(diǎn)定位技術(shù)在機(jī)載海洋重力測(cè)量中應(yīng)用的可行性。
[Abstract]:In this paper, the application of precision single point positioning technology in ocean survey is deeply studied, including the principle and mathematical model of precision single point positioning, the accuracy and reliability evaluation of the solution results, and the application of this technology in ocean control measurement. The main work and results of this paper are summarized as follows:. 1. On the basis of analyzing the principle and mathematical model of precision single point positioning, the main differences of three observation models are compared, and the main error sources that affect the precision of single point positioning and the methods of weakening and eliminating all kinds of error sources are studied. 2. The accuracy of precision single-point positioning solution is evaluated from internal coincidence and external coincidence, and the reliability evaluation methods of repeated measurement, equivalence and split-half are studied in detail. In this paper, three methods are compared and analyzed with examples, and measures to improve the accuracy and reliability of the results of precision single point positioning are put forward. 3. The precision single point positioning technology is applied to ocean control measurement. The influence of different observation time and sampling interval on static precision single point positioning results is analyzed. The feasibility of the application of precise single point positioning in ocean control survey is verified by using the measured data, and the application of high grade control survey far away from continental islands and reefs is discussed emphatically. 4. The precise single point positioning technique is applied to the tidal depth measurement, and the geodetic height of the tidal station is determined by using the precision single point positioning technique. The high precision bathymetric results are obtained through the calculation of the measured data. It effectively solves the problem that the operating range of the traditional differential positioning method is limited by distance. 5. The precision single point positioning technology is applied to the shipborne gravity survey, and the results of intersection mismatch between the precision single point positioning measurement mode and the traditional single point positioning measurement mode are compared. The feasibility of applying precision single point positioning technology to shipborne gravity survey is verified, and the problem of low accuracy of traditional single point positioning in shipborne gravity survey is solved. 6. The precise single point positioning technique is applied to airborne marine gravity measurement. By analyzing and comparing the advantages and disadvantages of several velocity and acceleration measurement methods and combining with the actual marine gravity measurement, the position difference method is determined as the velocity. The feasibility of the application of precise single point positioning technique in airborne marine gravimetry is verified by using the measured data.
【學(xué)位授予單位】：解放軍信息工程大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類號(hào)】：P229

【參考文獻(xiàn)】

相關(guān)期刊論文 前4條

1 張磊;朱寶訓(xùn);殷海濤;楚亮;;GPS星歷對(duì)實(shí)時(shí)定位精度的影響研究[J];城市勘測(cè);2007年01期

2 晏新村;歐陽永忠;孫付平;;精密單點(diǎn)定位解算結(jié)果可靠性評(píng)估方法研究[J];全球定位系統(tǒng);2012年06期

3 吳云;郭際明;孫海燕;;逐次濾波方法在GPS單點(diǎn)定位中的應(yīng)用研究[J];武漢大學(xué)學(xué)報(bào)(信息科學(xué)版);2007年01期

4 陳憲冬;;GPS精密定位中的海潮負(fù)荷改正[J];西南交通大學(xué)學(xué)報(bào);2006年04期

相關(guān)博士學(xué)位論文 前1條

1 聶建亮;GPS精密單點(diǎn)定位算法及故障診斷研究[D];長安大學(xué);2010年

本文編號(hào)：1597700