METHOD FOR DETERMINING COORDINATES OF GROUND MOBILE OBJECTS Russian patent published in 2011 - IPC G01C21/00 

FIELD: instrument making.

SUBSTANCE: two coordinate determination systems are used, the first one of which (independent system) is based on measuring principle of value and direction of the acting magnetic field and determination of position angle of movement direction. In this system together with movement readings, coordinates of location of mobile object are calculated as unit of time. The second system (satellite navigation system) is used only for compensation of the error occurred at long-term absence of satellite reception. At that, correction of covered distance, position angle, determination of values of relative movement coordinates with respect to the set coordinates of initial point of the beginning of movement is performed. Besides, processing of parameters of the measured magnetic field and compensation of influence of secondary magnetic fields is performed.

EFFECT: improvement of determination accuracy of azimuth angle of direction and location coordinates of ground mobile object.

3 cl, 1 dwg