Ionospheric Effects on Transionospheric Measurements of Range and Range Difference.
Abstract
The report discusses several alternatives that are available by which to minimize the influence of the ionosphere on transionospheric measurements of range and range difference. The alternatives considered involve using the dispersive nature of the ionosphere or the use of estimation techniques. The dispersive nature of the ionosphere makes it possible to use phase and/or group-path length measurements on one or more frequencies to correct for the major portion of the ionospheric induced range error. The mathematical basis for this approach is presented. Two studies involving the near real time estimation of the first order ionospheric induced range error are discussed. These studies are presented in order to define the current state of the art of existing estimation techniques. A review of the variations of the ionosphere in the middle latitudes is given to set a limit on the potential of the accuracy of existing estimation techniques.
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1974
- Accession Number
- ADA006118
Entities
People
- M. M. Feen
- V. L. Pisacane
Organizations
- Johns Hopkins University Applied Physics Laboratory