TY - GEN
T1 - Spatial characterization of high latitude ionosphere scintillation using an array of software receiver measurements
AU - Wang, Jun
AU - Morton, Yu
AU - Spaleta, Jeffery
AU - Bristow, William
N1 - Publisher Copyright:
Copyright © (2014) by the Institute of Navigation All rights reserved.
PY - 2014
Y1 - 2014
N2 - The objective of this paper is to demonstrate that GPS signal carrier phase scintillations observed from a spaced receiver array can be used to estimate ionosphere horizontal plasma drift velocities. Due to the non-stationary nature of the carrier phase scintillations and the existence of non-scintillation related components in the carrier phase measurements, direct time domain or Fourier spectral correlation of the receiver array measurements cannot yield meaningful results. An adaptive periodagram is used to generate high-resolution time-frequency information for the scintillation signal carrier phase. The resulting timing varying spectra from the receiver array are filtered and cross-correlated to generate time delays of similar scintillation patterns across a two-dimensional array. Horizontal plasma drift velocities are estimated using the time delays, known receiver spatial separations, assumed GPS signal ionosphere piercing heights, and satellite scan velocities. Plasma drift velocities measured by the SuperDARN radar at Kodiak, Alaska are used to validate the estimation results from the GNSS receiver array.
AB - The objective of this paper is to demonstrate that GPS signal carrier phase scintillations observed from a spaced receiver array can be used to estimate ionosphere horizontal plasma drift velocities. Due to the non-stationary nature of the carrier phase scintillations and the existence of non-scintillation related components in the carrier phase measurements, direct time domain or Fourier spectral correlation of the receiver array measurements cannot yield meaningful results. An adaptive periodagram is used to generate high-resolution time-frequency information for the scintillation signal carrier phase. The resulting timing varying spectra from the receiver array are filtered and cross-correlated to generate time delays of similar scintillation patterns across a two-dimensional array. Horizontal plasma drift velocities are estimated using the time delays, known receiver spatial separations, assumed GPS signal ionosphere piercing heights, and satellite scan velocities. Plasma drift velocities measured by the SuperDARN radar at Kodiak, Alaska are used to validate the estimation results from the GNSS receiver array.
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M3 - Conference contribution
AN - SCOPUS:84939435277
T3 - 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
SP - 1499
EP - 1507
BT - 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
PB - Institute of Navigation
T2 - 27th International Technical Meeting of the Satellite Division of the Institute of Navigation, ION GNSS 2014
Y2 - 8 September 2014 through 12 September 2014
ER -