Noise in GPS coordinate time series

Ailin Mao; Christopher G. A. Harrison; Timothy H. Dixon

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Noise in GPS coordinate time series

机译：GPS坐标时间序列中的噪声

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We assess the noise characteristics in time series of daily position estimates for 23 globally distributed Global Positioning System (GPS) stations with 3 years of data, using spectral analysis and Maximum Likelihood Estimation. A combination of white noise and flicker noise appears to be the best model for the noise characteristics of all three position components. Both white and flicker noise amplitudes are smallest in the north component and largest in the vertical component. The white noise part of the vertical component is higher for tropical stations (+- 23 deg latitude) compared to midlatitude stations. Velocity error in a GPS coordinate time series may be underestimated by factors of 5-11 if a pure white noise model is assumed.

机译：我们使用频谱分析和最大似然估计来评估23个全球分布的全球定位系统（GPS）站点的每日位置估计的时间序列中的噪声特征，这些站点具有3年的数据。对于所有三个位置分量的噪声特性，白噪声和闪烁噪声的组合似乎是最好的模型。白噪声和闪烁噪声幅度在北方分量中最小，在垂直分量中最大。与中纬度站相比，热带站（纬度为23度）垂直分量的白噪声部分更高。如果假设纯白噪声模型，则GPS坐标时间序列中的速度误差可能会因5-11的因素而被低估。

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《Journal of Geophysical Research. Biogeosciences》 |1999年第b2期|共20页
作者
Ailin Mao; Christopher G. A. Harrison; Timothy H. Dixon;
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机译：基于小波的混合方法从GPS坐标时间序列中去除闪烁噪声和白噪声
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7. A wavelet-based hybrid approach to remove the flicker noise and the white noise from GPS coordinate time series [O] . Wu H, Li K, Shi W, 2014

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Noise in GPS coordinate time series

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