【摘要】 一般来说,观测时间越长,基线解算结果质量就越好。然而当观测时间达到一定长度时,再延长观测时间对提高基线解算结果质量的效果并不明显。本文通过对实测工程GPS网的基线进行分时解算,并对解算结果质量进行比较与分析,得出了以下结论:在观测条件良好时,对边长较短(5km以下)的工程GPS网,其观测时间可以比规范规定的时间缩短10-20min(即缩短1/4-1/2的观测时间)。这个结论对进一步提高GPS测量的效率具有积极的意义。更多还原

【Abstract】 Generally,the longer the observation time is,the better the resolving quality of the baseline is.However,when the observation time reaches a definite length,it is not obvious to improve the resolving quality of baseline through extending the observation time.In this paper through data processing of an actual engineering GPS network by dividing the observation sess and comparing the resolving quality,we can make such a conclusion listed bellow: under a nicer observation condition and the engineering GPS network of shorter baseline(shorter than 5 kilometers),the observation time can shorten 10-20 minutes less than specifications for GPS surveys(shorten the observation time of 1/4-1/2).It has an active significance for enhancing the efficiency ulteriorly of GPS surveys.更多还原