Actions for Single-Frequency GPS Relative Navigation in a High Ionosphere Orbital Environment

Email RIS file
Bookmark
Report an Issue

Single-Frequency GPS Relative Navigation in a High Ionosphere Orbital Environment

Author
Naasz, Bo J.
Published
[2007].
Physical Description
1 electronic document
Additional Creators
Conrad, Patrick R.
Online Version

Availability

I Want It
I Want It

Finding items...

Restrictions on Access
Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The Global Positioning System (GPS) provides a convenient source for space vehicle relative navigation measurements, especially for low Earth orbit formation flying and autonomous rendezvous mission concepts. For single-frequency GPS receivers, ionospheric path delay can be a significant error source if not properly mitigated. In particular, ionospheric effects are known to cause significant radial position error bias and add dramatically to relative state estimation error if the onboard navigation software does not force the use of measurements from common or shared GPS space vehicles. Results from GPS navigation simulations are presented for a pair of space vehicles flying in formation and using GPS pseudorange measurements to perform absolute and relative orbit determination. With careful measurement selection techniques relative state estimation accuracy to less than 20 cm with standard GPS pseudorange processing and less than 10 cm with single-differenced pseudorange processing is shown.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 20070014901.
AAS 07-235.
2007 AAS/AIA Space Flight Mechanics Meeting; 28 Jan. - 1 Feb. 2007; Sedona, AZ; United States.
Terms of Use and Reproduction
Copyright, Distribution as joint owner in the copyright.
View MARC record | catkey: 16002437