Title :
A tactical fiber optic gyro with all-digital signal processing
Author :
Perlmutter, Michael S.
Author_Institution :
Electron. Syst. Div., Northrop Corp., Norwood, MA, USA
Abstract :
Northrop´s Electronics Systems Division has built and tested a tactical fiber optic gyro (FOG) with all-digital signal processing. The Northrop FOG uses 160 meters of polarization maintaining optical fiber wound on a spool 29 mm in diameter. Without any data compensation, this FOG has demonstrated excellent scale factor stability and non-linearity (<100 ppm) over a high dynamic range (±1400°/s), low random walk (<0.02°/√h), and outstanding bias stability over temperature and day-to-day (<1°/h). An inertial measurement unit (IMU) utilizing a FOG/MSA (micro silicon accelerometer) cluster has been developed and integrated with a Global Positioning System (GPS) receiver. Testing was done to demonstrate performance of the sensor and IMU over the military environment
Keywords :
fibre optic sensors; gyroscopes; inertial navigation; light polarisation; military equipment; optical fibres; radio receivers; radionavigation; satellite relay systems; signal processing; 14.5 mm; Global Positioning System; Northrop; all-digital signal processing; bias stability; high dynamic range; inertial measurement unit; low random walk; micro silicon accelerometer; military environment; nonlinearity; polarization maintaining optical fiber; scale factor stability; tactical fiber optic gyro; testing; Dynamic range; Electronic equipment testing; Global Positioning System; Optical fiber polarization; Optical fiber testing; Optical fibers; Optical signal processing; Stability; System testing; Wounds;
Conference_Titel :
Position Location and Navigation Symposium, 1994., IEEE
Conference_Location :
Las Vegas, NV
Print_ISBN :
0-7803-1435-2
DOI :
10.1109/PLANS.1994.303311
