Repeatability, accuracy, portability, and errors of the portable alignment gyrocompass system /
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Prepared at Electronics Research Center.
The precision alignment gyrocompass (PAG) system, a prototype system, was thoroughly evaluated at one laboratory and used at a second laboratory. A wealth of information describing potential error sources such as draft sensitivity, warm-up time, creep, seismic disturbances, and their circumvention was generated. System repeatability is discussed as it affects operating procedures. Two-position, four-position, and H-modulation gyrocompass techniques were studied, tested, and evaluated. At one location, the PAG absolute system accuracy was checked against a precision astronomically referenced azimuth in a very quiet and stable suburban environment. At the second location, in a noisy urban area, an optical azimuth reference was established using the PAG.
- Mihm, John J
- Contributing Institution
- University of Illinois
- Washington, D.C. : National Aeronautics and Space Administration ; [Springfield, Va. : For sale by the Clearinghouse for Federal Scientific and Technical Information
- Electronic resourceLanguage material
- Public domain. Learn more at http://www.hathitrust.org/access_use
- Chicago citation style
- Mihm, John J. Repeatability, accuracy, portability, and errors of the portable alignment gyrocompass system /. 1970]. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444627. (Accessed November 19, 2018.)
- APA citation style
- Mihm, John J, (1970]) Repeatability, accuracy, portability, and errors of the portable alignment gyrocompass system /. Retrieved from the Digital Public Library of America, http://catalog.hathitrust.org/Record/011444627
- MLA citation style
- Mihm, John J. Retrieved from the Digital Public Library of America <http://catalog.hathitrust.org/Record/011444627>.