Journal of Theoretical
and Applied Mechanics

36, 1, pp. 81-95, Warsaw 1998

Strapdown inertial navigation system. Part 1 – Navigation equations

Albert Ortyl, Zdzisław Gosiewski
Almost all aircraft are equipped with the Inertial Navigation Systems. The autonomous Inertial Systems are capable of calculating the navigational parameters of aircraft: position, velocity, and attitude, without external sources of information. In the paper the equations and algorithms of strapdown navigation system are derived and analysed. The research is focused on the calculation methods of the aircraft attitude.
Keywords: aircraft; strapdown system; attitude