METHOD OF UNMANNED AIRCRAFT MOTION PARAMETERS MINIMAX FILTRATION WITH CORRECTION FROM SATELLITE NAVIGATION SYSTEM Russian patent published in 2017 - IPC G01S13/66 G01S7/00 

FIELD: instrument making.

SUBSTANCE: invention relates to aviation and space instrument-making devices and unmanned aerial vehicles (UAV) parameters filtration systems, determining location in space using correlation data from several navigation instruments and can be used for UAV flight parameters filtration coming from on-board navigation system (BNS) to increase accuracy of UAV motion parameters determining. For this purpose, UAV parameters filtration process is performed in discrete time intervals based on processing information on UAV current position, coming from BNS and satellite navigation system (SNS). Filtering UAV motion parameters in current position consists of coming from BNS motion parameters minimax filtration, and periodic BNS correction from SNS. UAV parameters minimax filtration is based on calculation of data areas, taking into account measuring device possible error range and approachability areas (OA). Based on analysis of mutual position information areas and OA UAV motion parameters vector evaluation is determined, based on which as UAV control for transition into new position is determined. At periodic BNS correction from SNS in discrete time intervals measured data areas are abruptly reduced to minimum sizes determined by SNS motion parameters determining accuracy, and then vary in accordance with features of BNS operation till the next correction moment.

EFFECT: increase in accuracy.

1 cl, 3 dwg