基线解算是静态GPS测量中的关键步骤，对各种情况下基线解算的结果进行精度分析有利于根据观测条件改善GPS测量精度。
Baseline solution is the key step of static GPS surveying. The precision analysis of baseline solution result under every condition is benefit to improving GPS survey precision.
本文主要研究利用星载重力梯度仪观测数据恢复地球重力场的理论、方法和实用解算模型。
This dissertation focuses on the theory, methodology and practical mathematical model for the global gravity field determination from satellite gravity gradiometry data.
GPS姿态测量通常采用双差载波相位观测量，因此整周模糊值解算成为GPS实时姿态测量的关键问题。
Integer ambiguity resolution is the key problem of GPS based real-time attitude determination system which use double differencing carrier phase observables.
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