METHOD OF COMPENSATING INSTRUMENTAL ERRORS OF PLATFORMLESS INERTIAL NAVIGATION SYSTEMS AND DEVICE TO THIS END Russian patent published in 2009 - IPC G01C21/10 

FIELD: aerospace engineering.

SUBSTANCE: invention relates to navigation measurements and can be used for determining location coordinates of moving objects, for example, flying vehicles (FV). The invention essence consists in correcting the parametres of laws of control over inertial measuring unit incorporated with the plarformless inertial navigation system during the entire operating period. The correction is effected proceeding from the revealed functional dependence between optimum parametres of the laws of control over aforesaid unit and laser gyro instrumental errors varying in time. The proposed device incorporates inertial measuring unit comprising the unit of laser gyros and unit of accelerometers, mechanism of rotation, inertial measuring unit electronics and interfaces, digital microprocessor, navigation data coupling unit, velocity computation unit, data control and display unit, ADC and DAC, correction unit actuating time counter, laser gyro error determination unit, correction signal generation unit, unit generating the laws of control and navigation data bus.

EFFECT: higher accuracy of determining flight and navigation parametres of flying apparatus.

2 cl, 1 dwg