Integrated tightly coupled inertial satellite orientation and navigation system

Abstract

This paper presents the Russian Research Center, Elektropribor Concern, and the Russian Radionavigation and Time Institute’s integrated inertial-satellite orientation and navigation system with a micromechanical sensor—based strapdown inertial unit and GLONASS and GPS portable receivers. In order to improve the unit’s accuracy in solving the problem of object orientation, the second-order differences of phase measurements on spaced antennas are used. The tests results of the unit are shown and analyzed.