RING LASER GYROSCOPE ENHANCED RESOLUTION SYSTEM
Assignee
Litton Systems
Filed as: LITTON SYSTEMS, INC.
Filed
Apr 22, 1991
Granted
Jan 16, 1996
Location
PASADENA CA US
Abstract
Disclosed herein is a Ring Laser Gyroscope Enhanced Resolution System comprising, in a preferred embodiment, a sampling frequency modulation phase-locked loop (or "chirp") which is used in combination with the fast filter. Enhanced resolution is achieved by using the fast filter (preferably a moving average digital filter) to gather optically integrated rate data and accumulate this data. During the data gathering process, the accumulated data is sampled at a rate set by a frequency modulated ("chirper") phase-locked loop in order to remove undesirable data due to aliasing effects upon the digital filter. In this manner, an enhanced resolution of the gyroscope angular measurement is achieved.
Source: Google Patents
35 USC §181 Secrecy Order
Imposed
Sep 13, 1991
Rescinded
Apr 12, 1995
Duration
3 years, 7 months
Inventor
- 1JOHN G. MARK
Technology Domains
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Record Details
- Patent number
- US 5485273
- Application
- 07690174
- Aerospace match
- Yes
- Dataset source
- 35 USC §181 SO records
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