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首页> 外文会议>International Association of Institutes of Navigation 15th World Congress 2015 >An efficient heave estimation using Time-Differenced GPS carrier phase measurements and compensated barometer measurement applying error model
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An efficient heave estimation using Time-Differenced GPS carrier phase measurements and compensated barometer measurement applying error model

机译：使用时差GPS载波相位测量和采用误差模型的补偿气压计测量进行有效的升沉估计

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摘要

This paper proposed heave estimation using time-differenced GPS carrier phase measurement and compensated barometer measurement with applying error model. The carrier phase measurement makes a precise of the altitude more than code measurement because carrier phase based pseudo range has mm error. But integer ambiguity resolution problem must be solved when carrier phase measurement is used. Time-Differenced(TD) carrier phase measurements can be used to find a relative altitude using single GPS without an integer ambiguity resolution since a time-invariant. Integer ambiguity is removed by TD operation. Barometer error model estimated using Gauss-Morkov process. Output is result of kalman filter using barometer and carrier phase measurement. Performance of implemented system was evaluated through the experiments at various scenarios including static test in rural and urban areas.
机译：本文提出了时差GPS载波相位测量的升沉估计和应用误差模型的补偿气压计测量。载波相位测量比代码测量更能精确测量高度，因为基于载波相位的伪距具有mm误差。但是，当使用载波相位测量时，必须解决整数歧义分辨率问题。时差（TD）载波相位测量可用于使用单个GPS查找相对高度，而由于时间不变，所以没有整数歧义分辨率。 TD操作可消除整数歧义。使用Gauss-Morkov过程估算的晴雨表误差模型。输出是使用气压计和载波相位测量的卡尔曼滤波器的结果。通过在包括农村和城市地区的静态测试在内的各种场景下进行的实验来评估所实施系统的性能。

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