GPS基线解算方案的选择

针对基线解算质量的提高,除了在野外观测时必须按要求采取相应措施减少各种不利因素的影响外,还需要在必要时通过一定的手段来改进基线向量成果,提高网平差精度。通过南方测绘GNSS数据处理软件对不同卫星高度截止角、历元间隔、参考卫星的选择进行了研究,重点对比分析了各种基线解算方案对基线解算结果的影响,为使用者进行GPS基线解算提供有益的参考。通过实验数据的对比分析可知:在用软件进行基线解算时,需要综合考虑卫星数目的多少、同步观测时间,以及卫星的追踪总结图等。

Selection of GPS Baseline Solution

In view of the improvement of the quality of the baseline solution,in addition to the need to take corresponding measures to reduce the influence of various unfavorable factors in the field observation,it is necessary to improve the baseline vector results and improve the network adjustment accuracy through certain means when necessary. The GNSS data processing software of Southern Surveying and Mapping was used to study the selection of different satellite height cutoff angles,epoch intervals and reference satellites.The influence of various baseline solution schemes on baseline solution results was analyzed. Provide useful reference for users to perform GPS baseline solution. Through the comparative analysis of the experimental data,we can know that when using the software to perform the baseline solution,we need to consider the number of satellites,the synchronization observation time,and the satellite tracking summary map.