REPUBLIC OF SERBIA

MINISTRY OF DEFENCE

www.mod.gov.rs

MINISTRY OF DEFENCE

Material Resources Sector

Defensive Technologies Department

Military Technical Institute

www.vti.mod.gov.rs

GPS AIDED INS WITH GYRO COMPASSING FUNCTION

Ivana Trajkovski

Military Technical Institute, Belgrade, e-mail: vivanant@eunet.rs

Nada asanoviĆ

Military Technical Institute, Belgrade, e-mail: anamilnr@open.telekom.rs

VLADIMIR VUKMIRICA

Military Technical Institute, Belgrade, e-mail:div1@ptt.rs

MILAN MILOŠEVIĆ

Military Technical Institute, Belgrade, e-mail: marija.m@beotel.net

Abstract: This paper presents realized design and teseting results of inertial navigation system (INS) with gyrocompassing (azimuth determination) function. The system is aided with GPS receiver. It consists of three fiber optic gyros, three accelerometers and block of electronics. Both hardware and software solution for special purpose navigation computer is described. Testing procedures  as well as testing results of  INS gyrocompassing mode  are given.  Realization of  INS model with gyro compassing function is a significant achievement in this kind of technology with possibility for further optimization and analysis.

Keywords: inertial navigation system (INS), gyro compassing, azimuth, FOG, GPS, special purpose navigation compute.