【摘要】:GPS在精密工程測量領(lǐng)域中的應用越來越廣泛。人們期望GPS觀測的精度也越來越高。伴隨著高精度的要求而來的是對觀測數(shù)據(jù)以及與GPS測量有關(guān)的各種誤差的精密處理。本文以沈陽某GPS基線場為例,探究了GPS測量技術(shù)在中、短基線場復測中的相關(guān)內(nèi)容,同時研究了衛(wèi)星精密定位技術(shù)和全站儀復測超短基線場的相關(guān)方法,并將兩種測量方法的結(jié)果做對比。認為在超短基線場測量方面,衛(wèi)星精密定位技術(shù)可以替代全站儀進行復測。本文對GPS在基線場測量具有一定的借鑒意義,本文主要的研究內(nèi)容以及相關(guān)結(jié)論如下: (1)研究了衛(wèi)星精密定位的時間、坐標系統(tǒng);與精密定位有關(guān)的誤差及其消除、消弱的方法和措施;以及數(shù)據(jù)處理的方法,主要是GAMIT軟件的基線處理以及COSA軟件的網(wǎng)平差。 (2)利用衛(wèi)星精密定位技術(shù)對中、短基線場進行了復測,并結(jié)合GAMIT軟件、COSA軟件處理觀測數(shù)據(jù),進行網(wǎng)的整體平差得到了符合精度要求的基線場測量成果。 (3)利用衛(wèi)星精密定位技術(shù)對超短基線場進行復測,結(jié)合GAMIT軟件和COSA軟件處理觀數(shù)據(jù),用高精度全站儀對超短基線場進行復測,并對所測數(shù)據(jù)進行處理,主要是進行加、乘常數(shù)以及氣象的改正。將得到的基線邊長做比較,得出GPS技術(shù)和全站儀測量技術(shù)在超短基線場測量中具有相當?shù)木取?br/>
[Abstract]:GPS is more and more widely used in the field of precision engineering survey. It is expected that the accuracy of GPS observation will be higher and higher. With the requirement of high precision, the precision processing of the observed data and all kinds of errors related to the GPS measurement comes. Taking a GPS baseline field in Shenyang as an example, this paper probes into the related contents of GPS measurement technology in medium and short baseline field re-testing, and studies the satellite precise positioning technology and the related methods of ultra-short baseline field re-testing by whole station instrument at the same time. The results of the two methods are compared. It is considered that the satellite precise positioning technology can replace the total station in the measurement of ultra-short baseline field. The main research contents and related conclusions of this paper are as follows: (1) the time and coordinate system of satellite precise positioning is studied; The errors related to precise positioning and the methods and measures to eliminate and weaken, as well as the methods of data processing, are mainly the baseline processing of GAMIT software and the network adjustment of COSA software. (2) the satellite precise positioning technology is used to re-measure the medium and short baseline field, and the observation data are processed by GAMIT software and COSA software, the whole adjustment of the network is carried out, and the measurement results of the base line field accord with the precision requirement are obtained. (3) the ultra-short baseline field is re-measured by using satellite precise positioning technology, and the ultra-short baseline field is re-measured with a high-precision total station with GAMIT software and COSA software, and the measured data are processed, mainly by adding the measured data, and using the high-precision total station to remeasure the ultra-short baseline field with the help of COSA software and high-precision total station. Multiplicative constant and meteorological correction. By comparing the baseline length obtained, it is concluded that the GPS technique and the total station measurement technique have the same accuracy in the ultra-short baseline field measurement.
【學位授予單位】:遼寧工程技術(shù)大學
【學位級別】:碩士
【學位授予年份】:2013
【分類號】:P228.4
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