Toward a Navigation-Grade Miniaturized Gyroscope
Abstract
Navigating guided munitions requires operating in theatres with a high probability of GPS denial. In such environment an Inertial Navigation System (INS) capable of autonomous navigation for several minutes without relying on GPS is highly desirable. One main ingredient of such a system is an accurate gyroscope. For years, Boeing has been perfecting the design of a Disc Resonator Gyroscope (DRG) based on Micro-Electromechanical Systems (MEMS) that shows the promise of meeting the requirements needed for this task. This paper describes Boeings DRG technology targeting a Bias Instability < 0.01 deg / square root of hr and Angle Random Walk (ARW) < 0.001 deg / square root of hr. A Digital Signal Processing (DSP)-based INS, built using this Gyroscope, targeting a final azimuth accuracy of + or -1 mil in less than 60 seconds is also discussed. The paper focuses on the impact of packaging on gyroscope performance, in particular the sensitivity of DRG stability to strains caused by stresses during packaging and assembly.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 17, 2016
- Accession Number
- AD1025275
Entities
People
- Bryan Buchanan
- Mehdi Katoozi
- Thomas Bocek
Organizations
- Boeing