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Navigation simulator for the Space Tug vehicleA general simulation program (GSP) for state estimation of a nonlinear space vehicle flight navigation system is developed and used as a basis for evaluating the performance of a Space Tug navigation system. An explanation of the iterative guidance mode (IGM) guidance law, derivation of the dynamics, coordinate frames and state estimation routines are given in order to clarify the assumptions and approximations made. A number of simulation and analytical studies are used to demonstrate the operation of the Tug system. Included in the simulation studies are (1) initial offset vector parameter study; (2) propagation time vs accuracy; (3) measurement noise parametric study and (4) reduction in computational burden of an on-board implementable scheme. From the results of these studies, conclusions and recommendations concerning future areas of practical and theoretical work are presented.
Document ID
19780032151
Document Type
Reprint (Version printed in journal)
Authors
Colburn, B. K. (Texas A & M University College Station, Tex., United States)
Boland, J. S., III (Texas A&M Univ. College Station, TX, United States)
Peters, E. G. (Auburn University Auburn, Ala., United States)
Date Acquired
August 9, 2013
Publication Date
September 1, 1977
Publication Information
Publication: Computers and Electrical Engineering
Volume: 4
Subject Category
SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
Funding Number(s)
CONTRACT_GRANT: NAS8-29852
Distribution Limits
Public
Copyright
Other