Communications: directive radio wave systems and devices (e.g. – Radar for meteorological use
Patent
1994-05-03
1995-06-27
Eldred, J. Woodrow
Communications: directive radio wave systems and devices (e.g.,
Radar for meteorological use
7317016, 7317024, 7317027, 364420, G01S 1300
Patent
active
054283582
ABSTRACT:
This invention is a unique single-site method of determining the local total electron content (TEC) of the ionosphere and its space-time variation using a global positioning system (GPS) ionospheric receiver. The TEC of the ionosphere is specified in terms of a space-time map of the local TEC in the vicinity of the receiver. Differential group and phase path data between two L-band frequencies (L1 and L2) for a plurality of the GPS satellites in view of the receiver station are analyzed by a least squares technique to extract both the ten parameters of a full second order space-time polynomial expansion for the vertical TEC (VTEC) and the differential delay biases associated with the space vehicles (SVs). The method is applicable to day and nighttime data.
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Eldred J. Woodrow
McDonnell Thomas E.
Stockstill Charles J.
The United States of America as represented by the Secretary of
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