Azimuth Determination Using a Low Noise Ring Laser Gyro Inertial Measurement Unit.
Abstract
The performance requirements for a ring laser gyro inertial measurement system to achieve sub-arc second azimuth determination capability have been developed. Parallel theoretical studies link these requirements to identifiable laser gyro design parameters and indicate that a feasible design could be implemented within practical constraints. A feasibility system is being assembled which will consist of 3 Raytheon RB-25 multioscillator gyros and 3 Bell Aerospace Model XI accelerometers. The instrument cluster will be mounted on a single-degree-of-freedom rotary fixture. Rotation of the cluster will be used to washout long-term error contributors with a Kalman filter using a pseduo-velocity measurement technique.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 30, 1982
- Accession Number
- ADA122140
Entities
People
- Donald J. Pasik
- James B. Matthews
- Morris I. Gneses
Organizations
- RTX