... 差异量测 differenced measurement 差异量数 measure of difference ; measures of variability 无差异统计量 indifference statistics ...
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Such a system is discussed in this paper, and the corresponding error model and measurement model, especially double-differenced GPS carrier phase model are set up.
针对全组合系统进行了研究，建立了相应的误差模型和系统观测模型，特别是组合系统下的GPS载波相位双差观测模型。
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