本文選題：精密單點定位　切入點：海洋測量　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】：本文對精密單點定位技術(shù)在海洋測量中的應(yīng)用進行了深入研究，主要包括精密單點定位的原理與數(shù)學(xué)模型、解算結(jié)果的精度與可靠性評估以及該技術(shù)在海洋控制測量、無驗潮水深測量和海洋重力測量中的應(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，比較了三種觀測模型的主要區(qū)別，研究了影響精密單點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精密單點定位解算結(jié)果的精度進行了評估，深入研究了重復(fù)測量法、等價法和分半法三種精密單點定位解算結(jié)果的可靠性評估方法，結(jié)合實例對三種方法進行了比較分析，提出了提高精密單點定位解算結(jié)果精度和可靠性的措施。 3.將精密單點定位技術(shù)應(yīng)用于海洋控制測量，，分析了不同觀測時長和不同采樣間隔對靜態(tài)精密單點定位結(jié)果的影響，利用實測數(shù)據(jù)驗證了精密單點定位在海洋控制測量中應(yīng)用的可行性，重點探討了遠離大陸海島礁的高等級控制測量應(yīng)用問題。 4.將精密單點定位技術(shù)應(yīng)用于無驗潮水深測量，利用精密單點定位技術(shù)確定了驗潮站的大地高，通過實測數(shù)據(jù)計算得到了高精度的水深測量成果，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.將精密單點定位技術(shù)應(yīng)用于船載重力測量，通過比對基于精密單點定位測量模式和傳統(tǒng)單點定位測量模式解算的交叉點不符值結(jié)果，驗證了精密單點定位技術(shù)在船載重力測量中應(yīng)用的可行性，解決了遠海船載重力測量采用傳統(tǒng)單點定位精度較低的問題。 6.將精密單點定位技術(shù)應(yīng)用于機載海洋重力測量，通過分析比較幾種速度、加速度測量方法的優(yōu)缺點，結(jié)合海洋重力測量實際，確定了以位置差分法作為速度、加速度的測量方法。利用實測數(shù)據(jù)驗證了精密單點定位技術(shù)在機載海洋重力測量中應(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)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P229

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