發(fā)布時(shí)間：2018-05-20 05:19

  本文選題：似大地水準(zhǔn)面精化 + Stokes-Helmert法��； 參考：《測(cè)繪通報(bào)》2017年08期

【摘要】：利用改進(jìn)的Stokes-Helmert邊值問題實(shí)現(xiàn)了臨沂市厘米級(jí)似大地水準(zhǔn)面精化。首先,基于Stokes理論和Molodensky理論,聯(lián)合精密確定地表及其外部擾動(dòng)引力位的嚴(yán)密解算理論,給出Stokes-Helmert邊值問題的數(shù)學(xué)描述,以及直接地形影響和間接地形影響的嚴(yán)密理論表達(dá)式;然后,利用多源觀測(cè)資料,根據(jù)"移去-恢復(fù)"技術(shù)構(gòu)建臨沂高精度的重力似大地水準(zhǔn)面模型;最后,利用GPS/水準(zhǔn)高程異常對(duì)重力似大地水準(zhǔn)面模型進(jìn)行控制擬合,求得最終的大地水準(zhǔn)面模型,其外符合精度達(dá)到1.6 cm。
[Abstract]:The improved Stokes-Helmert boundary value problem is used to refine the centimeter quasi geoid in Linyi City. Firstly, based on Stokes theory and Molodensky theory, the rigorous calculation theory of precise determination of the gravitational potential of the surface and its external disturbance is presented, and the mathematical description of the Stokes-Helmert boundary value problem is given, as well as the rigorous theoretical expressions of direct and indirect topographic effects. Then, the gravity quasi geoid model with high precision in Linyi is constructed by using the multi-source observation data, and the gravity quasi geoid model is controlled by using the GPS/ leveling anomaly. The final geoid model is obtained, and its external coincidence accuracy reaches 1.6 cm.
【作者單位】： 臨沂市國(guó)土資源局測(cè)繪院;
【分類號(hào)】：P223.0

【相似文獻(xiàn)】

相關(guān)博士學(xué)位論文 前1條

1 榮敏;Stokes-Helmert方法確定大地水準(zhǔn)面的理論與實(shí)踐[D];解放軍信息工程大學(xué);2015年

，

本文編號(hào)：1913338