Abstract:
The paper discusses the challenges of inertial navigation in polar regions, where it is impossible to determine longitude and true heading at the poles. To overcome this difficulty, we propose using quasi-coordinates and quasi-attitude angles as well as relevant quasi-Greenwich and quasi-geodetic reference frames. It is proved that the quasi-geodetic (quasi-geocentric) coordinates, quasi-angles of orientation, velocities of an object and inertial sensors readings can be simulated by using quasi-coordinates instead of traditional ones.
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