本文選題：GPSRTK + 內(nèi)符合精度��； 參考：《西安科技大學(xué)》2013年碩士論文

【摘要】：GPSRTK具有用途廣、定位精度較高、自動(dòng)化程度高、全天候作業(yè)等優(yōu)點(diǎn),已在測(cè)繪領(lǐng)域中得到廣泛應(yīng)用。目前，測(cè)繪界對(duì)于RTK測(cè)量精度和測(cè)量誤差處理尚未形成統(tǒng)一的、量化的理論。由于RTK測(cè)量中常缺少必要的檢核條件，使得測(cè)量成果的可靠性較差。在小區(qū)域RTK測(cè)量中，如何檢驗(yàn)測(cè)量成果可靠性及提高測(cè)量定位的精度，已成為工程測(cè)量技術(shù)研究的重要課題。 本文針對(duì)小區(qū)域內(nèi)RTK測(cè)量定位的精度和可靠性問(wèn)題展開(kāi)分析與研究，提出了RTK定位精度的檢測(cè)方法，通過(guò)對(duì)RTK測(cè)量實(shí)驗(yàn)數(shù)據(jù)的內(nèi)符合精度檢測(cè)，，分析了RTK在小區(qū)域工程測(cè)量中實(shí)現(xiàn)高精度定位的技術(shù)可行性。在小區(qū)域內(nèi)RTK測(cè)量精度受轉(zhuǎn)換參數(shù)的影響顯著。本文對(duì)小區(qū)域RTK測(cè)量求解轉(zhuǎn) 換參數(shù)的模型進(jìn)行分析，通過(guò)實(shí)驗(yàn)結(jié)果檢驗(yàn)了轉(zhuǎn)換參數(shù)對(duì)于RTK測(cè)量精度的影響，提出了三種處理轉(zhuǎn)換參數(shù)以提高RTK測(cè)量精度的方法：（1）對(duì)求解RTK坐標(biāo)轉(zhuǎn)換參數(shù)過(guò)程加以改進(jìn)。并通過(guò)實(shí)例證實(shí)，在小區(qū)域內(nèi)改進(jìn)參 數(shù)轉(zhuǎn)換過(guò)程能有效提高RTK定位精度。（2）在假設(shè)參與求解轉(zhuǎn)換參數(shù)的已知公共點(diǎn)含有誤差的情況下，利用RTK測(cè)量點(diǎn)位 誤差的微分表達(dá)式，分析了已知公共點(diǎn)固有誤差對(duì)RTK測(cè)量精度的影響，通過(guò)實(shí)例對(duì)已知公共點(diǎn)進(jìn)行檢核，以改進(jìn)RTK測(cè)量的精度。（3）將多個(gè)公共點(diǎn)參與轉(zhuǎn)換參數(shù)的求解，逐個(gè)剔除每次計(jì)算后的較大殘差點(diǎn)，最 終篩選出殘差最小的一組公共點(diǎn)來(lái)計(jì)算該區(qū)域轉(zhuǎn)換參數(shù)的最優(yōu)解。本文探討了RTK測(cè)量誤差的處理方法，嘗試對(duì)RTK測(cè)量偏差與測(cè)量過(guò)程中的 HRMS、VRMS、衛(wèi)星數(shù)、GDOP、距基準(zhǔn)站距離等多個(gè)參數(shù)進(jìn)行回歸分析，得到RTK測(cè)量誤差處理的經(jīng)驗(yàn)公式，為小區(qū)域內(nèi)RTK測(cè)量的誤差處理提供了一種方法，對(duì)于GPS工程測(cè)量應(yīng)用具有參考價(jià)值。
[Abstract]:GPSRTK has many advantages, such as wide use, high positioning precision, high automation, all-weather operation and so on. It has been widely used in the field of Surveying and mapping. At present, the surveying circle has not yet formed a unified and quantitative theory for the measurement accuracy and measurement error of RTK. Because of the lack of necessary checking conditions in RTK measurement, the measurement results are reliable. In the small area RTK measurement, how to test the reliability of measurement results and improve the accuracy of measurement positioning has become an important topic in engineering survey technology research.
Based on the analysis and research of the accuracy and reliability of RTK measurement and positioning in the small area, this paper puts forward the detection method of RTK positioning precision, and analyzes the technical feasibility of the high precision positioning of the RTK in the residential area engineering measurement through the internal accuracy detection of the experimental data of RTK measurement. The RTK measurement precision is transferred in the district domain. The effect of parameter change is significant. In this paper, RTK transform in small area is solved.
The model of changing parameters is analyzed. Through experimental results, the influence of conversion parameters on RTK measurement accuracy is tested. Three methods of processing conversion parameters to improve the accuracy of RTK measurement are proposed. (1) improving the parameter process of solving RTK coordinate transformation.
The number conversion process can effectively improve the positioning accuracy of RTK. (2) assuming that the known common points involved in solving conversion parameters contain errors, RTK measurement points are used.
The differential expression of the error is used to analyze the influence of the known common point inherent error on the accuracy of RTK measurement. Through an example, the known common points are checked to improve the accuracy of the RTK measurement. (3) multiple common points are involved in the solution of the conversion parameters and the larger residual points after each calculation are eliminated one by one.
A group of common points which have the smallest residuals are selected to calculate the optimal solution of the conversion parameters in the region. This paper discusses the processing method of RTK measurement error and tries to measure the deviation and measurement of RTK.
HRMS, VRMS, satellite number, GDOP, and the distance from the distance from the base station are analyzed by regression analysis. The empirical formula for the error processing of RTK measurement is obtained. It provides a method for the error treatment of RTK measurement in the small area, and is of reference value for the application of GPS engineering measurement.
【學(xué)位授予單位】：西安科技大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2013
【分類(lèi)號(hào)】：P228.4

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