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GPS selective availability error contains a small component with a period of 3 seconds: Influence on the phase measurement noise
Author(s) -
Sleewaegen J. M.
Publication year - 1999
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/1999gl900434
Subject(s) - global positioning system , amplitude , noise (video) , phase (matter) , component (thermodynamics) , ranging , geodesy , environmental science , remote sensing , geology , computer science , physics , telecommunications , optics , quantum mechanics , artificial intelligence , image (mathematics) , thermodynamics
It is commonly assumed that the GPS ranging degradation called Selective Availability contains only low frequency components, with a correlation time on the order of several minutes. It will be shown here that, on top of this well known behavior, SA contains a small high frequency component centered around 1/3 Hz (period 3 s), with an amplitude on the order of the millimeter. This unexpected component will be studied and characterized. It will be shown that it causes the noise on the phase measurement to be non‐white, and that it is responsible for errors when decimating GPS data.