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Title: Ionospheric Imaging From a Low Earth Orbiter Tracking GPS
Authors: Hajj, G.
Ibanez-Meier, R.
Kursinski, E.
Issue Date: 24-Sep-1993
Citation: Salt Lake City, Utah, USA
Abstract: Tomographic imaging of the ionosphere is examined using singular value decomposition analysis. The interdependency of the obtainable resolution, the accuracy of the solution and the noise data is explained. A simulation is illustrated where a true 2-D ionospheric structure is generated, and a tomographic inversion of the structure is carried out. Inclusion of data taken in an occultation geometry reveals the strength that is added by these data. The effect of the ionosphere on a GPS signal as viewed by a user in space is examined. Under somewhat strong solar conditions, the absolute bending of the signal is of the order of 0.01 degrees for the L1 signal; the phase advance can be as large as 90 meters.
Appears in Collections:JPL TRS 1992+

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