- 易迪拓培训,专注于微波、射频、天线设计工程师的培养
天线相位中心改正模型对PPP参数估计的影响
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Abstract:Both the relative and absolute models of antenna phase center(IGS_01 and IGS05) are described.Influence of these two models on PPP estimation,including coordinates,Zenith path delay(ZPD) and receiver clock biases are analyzed.Results show that the difference of ZPD estimates is about 5 mm,and that of estimated receiver clock bias and height of site is relatively around 3 ns and 1 cm,respectively,based on different antenna phase center models.In addition,with the absolute model,the accuracy of PPP-derived ZPD is better than 5 mm,and the horizontal positioning accuracy arrives at 1 cm,while the accuracy of estimated clock bias is about 0.1 ns.
作者:张小红, 李盼, 李星星, 郭斐,
关键词:精密单点定位, 绝对天线相位中心模型, 相对天线相位中心模型, 参数估计,
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