Purpose: To determine which type of heading correction is best for different applications of the INS.
Last Updated: June 2020
For INS-D/DL: The “Dual GNSS” type of heading correction can be used for any application that allows the installation of the INS and two GNSS antennas with a baseline of at least 1.5 m (it can be static, quasi-static, and slowly moving objects as well as objects with high dynamic). So, any application where two antennas can be installed with a clear view of the sky and less than 1.5 meters away from one each other. When Dual GNSS type is used, the algorithm starts as soon as the GNSS receiver provides a heading solution.