HERCULES attitude processor: gyro data processing system for real-time geolocation of images captured by astronauts

The HERCULES (hand held, earth oriented, real-time, cooperative, user friendly, location, targeting, and environmental system) attitude processor (HAP), a microprocessor-based gyro attitude data processing system used in the geolocation process, is described. The HAP software and hardware structures...

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Published in1993 IEEE Aerospace Applications Conference Digest pp. 169 - 178
Main Authors Higgins, R.F., Tront, J.G.
Format Conference Proceeding
LanguageEnglish
Published IEEE 1993
Subjects
Cameras
Data processing
Earth
Hardware
Laboratories
Performance evaluation
Real time systems
Software performance
Space shuttles
Space technology
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Abstract The HERCULES (hand held, earth oriented, real-time, cooperative, user friendly, location, targeting, and environmental system) attitude processor (HAP), a microprocessor-based gyro attitude data processing system used in the geolocation process, is described. The HAP software and hardware structures are discussed. A worst-case analysis of the design shows that there are no design flaws. The HERCULES HAP and attitude reference unit (ARU) are able to track the Earth rate to within 0.005 degrees per hour in some cases, and always within 0.05 degrees per hour. ARU alignment methods have been verified. Typical alignment errors are less than 0.03 degrees.< >
AbstractList The HERCULES (hand held, earth oriented, real-time, cooperative, user friendly, location, targeting, and environmental system) attitude processor (HAP), a microprocessor-based gyro attitude data processing system used in the geolocation process, is described. The HAP software and hardware structures are discussed. A worst-case analysis of the design shows that there are no design flaws. The HERCULES HAP and attitude reference unit (ARU) are able to track the Earth rate to within 0.005 degrees per hour in some cases, and always within 0.05 degrees per hour. ARU alignment methods have been verified. Typical alignment errors are less than 0.03 degrees.< >
Author Higgins, R.F.
Tront, J.G.
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Snippet The HERCULES (hand held, earth oriented, real-time, cooperative, user friendly, location, targeting, and environmental system) attitude processor (HAP), a...
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StartPage 169
SubjectTerms Cameras
Data processing
Earth
Hardware
Laboratories
Performance evaluation
Real time systems
Software performance
Space shuttles
Space technology
Title HERCULES attitude processor: gyro data processing system for real-time geolocation of images captured by astronauts
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