METHOD FOR DETERMINATION OF POSITION OF COORDINATE AXES OF OBJECT INERTIAL NAVIGATION SYSTEM RELATIVE TO BASE COORDINATE SYSTEM (MODIFICATIONS) Russian patent published in 2000 - IPC

FIELD: navigation of various objects having an on-board inertial navigation system (aeroplanes, space vehicles, automobiles, ships). SUBSTANCE: the method consists in navigation measurements in the object base and inertial coordinate systems. The system used in the global navigation system, types "Glonas" and "Navstar", is selected as the base one. The coordinates and/or object velocity vectors are measured in different pairs of time instants in the successive and non-parallel trajectory legs in both coordinate systems. The given motion parameters are determined by measuring the acceleration vector in these legs. Movements of the object and/or increments of its velocity are determined by the coordinates and/or velocities in the trajectory legs. The transition matrix between the base and inertial coordinate systems is plotted according to them. The relative position of the coordinate axes of both systems is found with the aid of the matrix components. Nonparallel trajectory legs may be obtained by a special maneuver of the object. EFFECT: enhanced accuracy and all-weather conditions of realization of the method. 4 cl, 1 dwg