PLATFORM-FREE INERTIAL ATTITUDE AND HEADING REFERENCE SYSTEM BASED ON SENSITIVE ELEMENTS OF MEDIUM ACCURACY Russian patent published in 2013 - IPC G01C21/12 

Abstract RU 2487318 C1

FIELD: instrument making.

SUBSTANCE: platform-free system of orientation comprises two computing platforms, every of which realises its law of control. One of them carries out damping along internal accelerations limited by a linear function. The second one uses estimates of an adaptive Kalman filter for realisation of error damping. At the same time if in the first platform the damping coefficients are selected as high, then in the second one damping is carried out with coefficients of low value. At the same time sensitive elements of medium accuracy are gyroscopic sensors of angular speed with drift instability 0.5-10 degrees/hr and accelerometers with instability of the field 1·10-3g-4·10-3 g.

EFFECT: improved accuracy of angular orientation.

4 cl, 6 dwg

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RU 2 487 318 C1

Authors

Salychev Oleg Stepanovich

Grigor'Ev Viktor Evgen'Evich

Makarov Nikolaj Nikolaevich

Pisarev Valerij Mikhajlovich

Dates

2013-07-10Published

2012-02-14Filed