Title :
Global Positioning System (GPS) autonomous navigation
Author :
Ananda, M.P. ; Bernstein, H. ; Cunningham, K.E. ; Feess, W.A. ; Stroud, E.G.
Author_Institution :
Aerosp. Corp., El Segundo, CA, USA
Abstract :
A system description, a discussion of design issues, and performance results obtained from the Aerospace Corporation simulation of the GPS autonomous navigation system (ANS) concept are given. Analysis methods, physical models, and pertinent equations are presented. Measurement data are realistically simulated and include the effects of all known environmental and hardware phenomena affecting performance. Performance under nominal and anomalous conditions (satellite failures) and in nuclear environments is described. Unobservable errors which degrade performance are discussed. Preliminary studies show that the full constellation system is measurement rich. A simple scheme such as rejecting low signal-to-noise ratio or high delay measurements will probably be a satisfactory design response to distortion due to scintillation in the enhanced environment
Keywords :
aerospace computer control; digital simulation; radionavigation; satellite relay systems; Aerospace Corporation; GPS; Global Positioning System; autonomous navigation; delay measurements; design; errors; nuclear environments; satellite failures; simulation; Aerospace simulation; Degradation; Delay; Distortion measurement; Equations; Global Positioning System; Hardware; Satellite navigation systems; Signal design; Signal to noise ratio;
Conference_Titel :
Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE
Conference_Location :
Las Vegas, NV
DOI :
10.1109/PLANS.1990.66220
