Matrix completion methods for the total electron content video reconstruction

نویسندگان

چکیده

The total electron content (TEC) maps can be used to estimate the signal delay of GPS due ionospheric between a receiver and satellite. This result in positioning error. Thus, it is important monitor TEC maps. observed have big patches missingness ocean scattered small areas on land. In this paper we propose several extensions existing matrix completion algorithms achieve map reconstruction, accounting for spatial smoothness temporal consistency while preserving structures We call proposed method video imputation with softImpute, smoothing auxiliary data (VISTA). Numerical simulations that mimic patterns real are given. show our achieves better reconstructed maps, as compared methods literature. Our computational algorithm general readily applied other problems besides reconstruction.

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ژورنال

عنوان ژورنال: The Annals of Applied Statistics

سال: 2022

ISSN: ['1941-7330', '1932-6157']

DOI: https://doi.org/10.1214/21-aoas1541