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The development and demonstration of hybrid programmable attitude control electronicsIn the course of extended life attitude control system (ELACS) research sponsored by NASA a hybrid programable attitude control electronics (HYPACE) concept was developed and demonstrated. The wide variety of future planetary missions demanded a new control approach to accommodate the automatic fault tolerance and long the life requirements of such missions. HYPACE provides an adaptable, analog/digital design approach that permits preflight and in-flight accommodation of mission changes, component performance variations, and spacecraft changes, through programing. This enabled broad multimission flexibility of application in a cost effective manner. Previously, flight control computers have not been not flown on planetary missions because of weight and power problems. These problems were resolved in the design of HYPACE. The HYPACE design, which was demonstrated in breadboard form on a single-axis gas-bearing spacecraft simulation, uses a single control channel to perform the attitude control functions sequentially, thus significantly reducing the number of component parts over hard-wired designs.
Document ID
19730023127
Acquisition Source
Legacy CDMS
Document Type
Other
Authors
Smith, L. S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Kopf, E. H., Jr.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 7, 2013
Publication Date
July 1, 1973
Publication Information
Publication: JPL Quart. Tech. Rev., Vol. 3, No. 2 (NASA-CR-133863)
Subject Category
Electronics
Accession Number
73N31859
Distribution Limits
Public
Copyright
Public Use Permitted.
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