Title :
Interferometric fiber-optic gyroscopes: a summary of progress
Author :
Liu, R.Y. ; Adams, G.W.
Author_Institution :
Honeywell Syst. & Center, Phoenix, AZ, USA
Abstract :
An overview of both open-loop and closed-loop IFOG (interferometric fiber-optic gyroscope) technologies is presented. Error sources associated with short-term random noise and long-term bias stability have been identified and properly controlled. Current research activities are focused on improving both the dynamic range and the scale factor performance for inertial navigation applications. For low- and medium-performance requirements, IFOG technology is close to the production stage. Cost and packing issues are being addressed to bring the IFOG from a laboratory instrument to a product. Progress on an attitude and heading reference system (AHRS) open-loop IFOG and an inertial-grade, closed-loop IFOG is presented, and the prospects and applications of these newly emerging technologies are discussed
Keywords :
closed loop systems; fibre optic sensors; gyroscopes; inertial navigation; light interferometry; stability; Sagnac effect; aircraft instrumentation; attitude control; closed-loop; heading reference system; inertial navigation; interferometric fiber-optic gyroscope; long-term bias stability; open-loop; short-term random noise; Costs; Dynamic range; Error correction; Gyroscopes; Inertial navigation; Instruments; Laboratories; Open loop systems; Production; Stability;
Conference_Titel :
Position Location and Navigation Symposium, 1990. Record. The 1990's - A Decade of Excellence in the Navigation Sciences. IEEE PLANS '90., IEEE
Conference_Location :
Las Vegas, NV
DOI :
10.1109/PLANS.1990.66153
