Analysis of the Effect of Time Delay on the Integrated GNSS/INS Navigation Systems

• Main Authors: Choel-Kwan Yang, Duk-Sun Shim
• Format: Article
• Language: English
• Published: Gdynia Maritime University 2013-06-01
• Series: TransNav: International Journal on Marine Navigation and Safety of Sea Transportation
• Subjects: Time Delay; Global Navigation Satellite System (GNSS); Inertial Navigation System; Computer Simulation; Consequences of Delays; Integration of Navigation; Kalman Filter; Integrated GNSS/INS system
• Online Access: http://www.transnav.eu/files/Analysis of the Effect of Time Delay on the Integrated GNSS/INS Navigation Systems,427.pdf

The performance of tightly coupled GNSS/INS integration is known to be better than that of loosely coupled GNSS/INS integration. However, if the time synchronization error occurs between the GNSS receiver and INS(Inertial Navigation System), the situation reverses. The performance of loosely coupled GNSS/INS integration and tightly coupled GNSS/INS integration is analyzed and compared due to time synchronization error by computer simulation.