【摘要】：中國大陸構造環(huán)境監(jiān)測網(wǎng)絡由260個連續(xù)全球定位系統(tǒng)觀測站點和2 000個不定期全球定位系統(tǒng)觀測站點構成,一般采用GAMIT或Bernese高精度數(shù)據(jù)處理軟件進行處理。由于GAMIT及Bernese軟件對測站數(shù)處理能力的限制,必須對陸態(tài)網(wǎng)連續(xù)運行基準站進行分區(qū)解算。針對這一問題,為研究不同分區(qū)方案對陸態(tài)網(wǎng)解算精度的影響,該文基于全國55個陸態(tài)網(wǎng)絡連續(xù)運行基準站數(shù)據(jù),采用整網(wǎng)解算方案以及間距分區(qū)法和區(qū)域子網(wǎng)劃分法分別進行解算,并以整網(wǎng)解算結果作為標準值,對比兩種分區(qū)方案與整網(wǎng)解算方案的基線長度差及坐標差。結果表明,間距分區(qū)方案解算精度比區(qū)域子網(wǎng)劃分方案精度高,可實現(xiàn)對陸態(tài)網(wǎng)分區(qū)的高精度解算。最后利用間距分區(qū)法對全國240個陸態(tài)網(wǎng)絡連續(xù)運行基準站進行分區(qū)解算,得到了較高精度的解算結果。
[Abstract]:The tectonic environment monitoring network in China consists of 260 continuous GPS observation stations and 2 000 irregular GPS observation stations, which are generally processed by GAMIT or Bernese high-precision data processing software. Due to the limitation of GAMIT and Bernese software on the number of stations, it is necessary to calculate the land network continuous operation reference stations. To solve this problem, in order to study the influence of different zoning schemes on the calculation accuracy of land state network, this paper is based on the data of 55 continuous operation reference stations of land state network in China. The whole network solution scheme, the interval partition method and the area subnet partition method are used to solve the problem, and the results of the whole network solution are taken as the standard values to compare the baseline length difference and coordinate difference between the two partition schemes and the whole network solution scheme. The results show that the resolution accuracy of the spaced partition scheme is higher than that of the regional subnet partition scheme. Finally, the method of spacing partition is used to calculate 240 land network continuous operation reference stations in China, and the results are obtained with high accuracy.
【作者單位】： 中國測繪科學研究院;
【基金】：國家自然科學基金項目(41374014) 國家“863”計劃項目(2013AA122501) 國家測繪地理信息局基礎測繪項目(A1403) 北斗分析中心項目(GFZX0301040308-06) 中國測繪科學研究院學術科研業(yè)務費項目(7771405)
【分類號】：P228.4

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