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Record Details

Record 45 of 1778
The development and demonstration of hybrid programmable attitude control electronics
Offline Availability: Go to Request Form
Author and Affiliation:
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)
Abstract: In 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.
Publication Date: Jul 01, 1973
Document ID:
19730023127
(Acquired Nov 22, 1995)
Accession Number: 73N31859
Subject Category: ELECTRONICS
Document Type: Technical Report
Publication Information: JPL Quart. Tech. Rev., Vol. 3, No. 2 (NASA-CR-133863); p 1-10
Publisher Information: United States
Financial Sponsor: NASA; United States
Organization Source: Jet Propulsion Lab., California Inst. of Tech.; Pasadena, CA, United States
Description: 10p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright; Distribution under U.S. Government purpose rights; under contract NAS7-100
NASA Terms: ANALOG COMPUTERS; DIGITAL SYSTEMS; INTERPLANETARY FLIGHT; SATELLITE ATTITUDE CONTROL; COST EFFECTIVENESS; JUPITER PROJECT; PREFLIGHT OPERATIONS; SATURN PROJECT; SPACECRAFT ELECTRONIC EQUIPMENT
Imprint And Other Notes: In its JPL Quart. Tech. Rev., Vol. 3, No. 2 (NASA-CR-133863) p 1-10 (SEE N73-31858 22-34)
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