Impact of the Geoplasma on a Spaceborne GPS(Global Positioning System) Receiver System - A Preliminary Study
Abstract
It is well known that the most accurate positioning information obtainable from the GPS system, in the traditional application where the receivers are located on or very near to the surface of the earth, i.e., beneath the ionosphere, is achieved through use of the two-frequency method so that the ionospheric component of the ranging error can be removed. However, in an application where a GPS receiver is itself located on a spacecraft orbiting above some of the electron content in the ionosphere and protonosphere, the question as to whether a two-frequency system is necessary may have a different answer. In this preliminary study, the parameters of the latter question are explained and the range of errors which might be experienced by a single- frequency system are estimated.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 28, 1989
- Accession Number
- ADA205965
Entities
People
- J. M. Goodman
Organizations
- United States Naval Research Laboratory