Accession Number : ADD015668

Title :   System for Calibrating a Gyro Navigator.

Descriptive Note : Patent, Filed 31 Mar 89, patented 24 Nov 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Stambaugh, John S

Report Date : 24 Nov 1992

Pagination or Media Count : 4

Abstract : The present invention relates to a system for calibrating translation equations of a gyro navigator of a submarine. A value of velocity and a value of position of the submarine are produced by using values of acceleration sensed by accelerometers in the navigation gyro. The value of velocity and position are produced with the aid of the translation equations. This value of velocity and value of position are compared with a value of velocity and a value position as produced by a more accurate and independent source. A comparison is made with the aid of Kalman filter. Any difference obtained during a comparison is used in order to calibrate the translation equations of the gyro navigator.

Descriptors :   *NAVIGATORS, *GYROSCOPES, *PATENTS, ACCELERATION, ACCELEROMETERS, COMPARISON, EQUATIONS, FILTERS, INVENTIONS, NAVIGATION, SUBMARINES, TRANSLATIONS, VALUE, VELOCITY

Subject Categories : Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE