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Redundant Strapdown Laser Gyro Navigation SystemFor the last several years, NASA has pursued the development of low-cost high-reliability inertial navigation systems that would satisfy a broad spectrum of future space and avionics missions. Two specific programs have culminated in the construction of a Redundant Strapdown Laser Gyro Navigation System. These two programs were for development of a space ultrareliable modular computer (SUMC) and a redundant laser gyro inertial measurement unit (IMU). The SUMC is a digital computer that employs state-of-the-art large-scale integrated circuits configured in a functional modular breakdown. The redundant laser gyro IMU is a six-pack strapdown sensor package in a dodecahedron configuration which uses six laser gyros to provide incremental angular positions and six accelerometers for linear velocity outputs. The sensor arrangement allows automatic accommodation of two failures; a third failure can be tolerated provided it can be determined. The navigation system also includes redundant power supplies, built-in test-equipment (BITE) circuits for failure detection, and software which provides for navigation, redundancy management, and automatic calibration and alignment.
Document ID
19760064262
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Mcpherson, B. W.
(IBM Corp. Huntsville, Ala., United States)
Walls, B. F.
(International Business Machines Corp. Huntsville, AL, United States)
White, J. B.
(NASA Marshall Space Flight Center Huntsville, Ala., United States)
Date Acquired
August 8, 2013
Publication Date
January 1, 1976
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Meeting Information
Meeting: Engineering in a changing economy
Location: Clemson, SC
Start Date: April 5, 1976
End Date: April 7, 1976
Accession Number
76A47228
Distribution Limits
Public
Copyright
Other

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