本文選題：切比雪夫多項(xiàng)式擬合 + 快速求解整周模糊度　； 參考：《遼寧工程技術(shù)大學(xué)》2013年碩士論文

【摘要】：在信息化極速發(fā)展的時(shí)代背景下，GPS的應(yīng)用與推廣得到了極大的發(fā)展，相應(yīng)的GPS數(shù)據(jù)處理的研究課題更是得到了前所未有的深入研究。本文以實(shí)現(xiàn)用于研究與教學(xué)的GPS數(shù)據(jù)處理軟件為出發(fā)點(diǎn)，以解算載波相位雙差模型GPS基線向量和基線向量的網(wǎng)平差為研究的主要內(nèi)容，兼顧對GPS數(shù)據(jù)處理方法的比較，通過解算的GPS基線向量和坐標(biāo)數(shù)據(jù)與商用軟件的解算結(jié)果作比較，滿足預(yù)期的精度要求，最終達(dá)到了基于VS平臺下開發(fā)的能進(jìn)行GPS基線解算與GPS基線網(wǎng)平差的軟件系統(tǒng)的目的。 本文主要是分析了國內(nèi)外GPS數(shù)據(jù)處理方面的研究現(xiàn)狀，，介紹了GPS定位的基本模式和測量誤差，著重分析了適用于編程的GPS數(shù)據(jù)處理的結(jié)構(gòu)和方法，實(shí)現(xiàn)了程序的基本功能。最主要的有以下幾點(diǎn)： 1)通過對讀入的GPS數(shù)據(jù)結(jié)構(gòu)進(jìn)行研究，利用它的結(jié)構(gòu)特點(diǎn)重新組合成更具GPS觀測數(shù)據(jù)的物理特性和便于計(jì)算機(jī)處理的數(shù)學(xué)特性的新型數(shù)據(jù)。采用雙頻載波相位觀測值對周跳進(jìn)行探測及修復(fù)。考慮到計(jì)算衛(wèi)星坐標(biāo)時(shí)會在相鄰時(shí)段出現(xiàn)GPS衛(wèi)星坐標(biāo)多值性問題和減少計(jì)算機(jī)的運(yùn)算負(fù)荷方法時(shí)，利用了chevyshev多項(xiàng)式對廣播星歷計(jì)算的坐標(biāo)進(jìn)行了擬合，編寫了用于試驗(yàn)拉格朗日內(nèi)插方法的內(nèi)插階數(shù)與內(nèi)插時(shí)間間隔對內(nèi)插結(jié)果影響的程序； 2)探討了快速求解整周模糊度的理論，驗(yàn)證了在觀測時(shí)間足夠長和基線長度在一定范圍以內(nèi)采用取整法的可行性； 3)系統(tǒng)性的描述了雙差模型下的GPS基線向量和基線網(wǎng)平差的計(jì)算公式，解析了能適用于計(jì)算機(jī)編程的各法方程系數(shù)項(xiàng)組成數(shù)據(jù)內(nèi)容； 4)采用曲面擬合的方法對高程進(jìn)行擬合，通過對結(jié)果進(jìn)行分析，找出了幾點(diǎn)可能對結(jié)果造成影響的因素； 5)通過與商用GPS數(shù)據(jù)處理軟件比較基線解算和基線網(wǎng)平差的結(jié)果進(jìn)行分析，驗(yàn)證了本次論文設(shè)計(jì)方法的正確性。
[Abstract]:Based on the GPS data processing software for research and teaching , the GPS data processing software is used to compare the GPS baseline vector and the baseline vector between the GPS baseline vector and the baseline vector to meet the expected accuracy requirement . Finally , the aim of the software system based on the VS platform for the calculation of GPS baseline and the GPS baseline network adjustment is achieved .

This paper mainly analyzes the current situation of GPS data processing at home and abroad , introduces the basic mode and measurement error of GPS positioning , analyses the structure and method of GPS data processing suitable for programming , and realizes the basic function of program .

1 ) By studying the read - in GPS data structure , the new data of the physical characteristics of more GPS observation data and the mathematical characteristic which is convenient for computer processing are regrouped by using its structural characteristics . The coordinates of the broadcast ephemeris are fitted by using the two - frequency carrier phase observation value .


2 ) The theory of fast solving integer ambiguity is discussed , and the feasibility of adopting the rounding method within a certain range is verified after the observation time is long enough and the baseline length is within a certain range ;


3 ) The calculation formula of the GPS baseline vector and the baseline net adjustment under the double difference model is systematically described , and the composition data content of each method equation coefficient item which can be applied to computer programming is analyzed ;


4 ) fitting the elevation with the method of surface fitting , analyzing the result , and finding out several factors which can influence the result ;


5 ) By comparing the results of baseline calculation and baseline net adjustment with commercial GPS data processing software , the correctness of the design method of this paper is verified .

【學(xué)位授予單位】：遼寧工程技術(shù)大學(xué)
【學(xué)位級別】：碩士
【學(xué)位授予年份】：2013
【分類號】：P228.4;P207.2

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本文編號：1787879