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(11)

EP 3 274 657 A1

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(43) Date of publication: 31.01.2018 Bulletin 2018/05 (21) Application number: 16767866.3 (22) Date of filing: 13.03.2016

(51) International Patent Classification (IPC):  G01C 17/34(2006.01) (86) International application number: PCT/IL2016/050272 (87) International publication number: WO 2016/151574 (29.09.2016 Gazette 2016/39)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: MA MD (30) Priority: 26.03.2015 IL 23796315 (71) Applicant: Israel Aerospace Industries Ltd. 7010000 Lod (IL)	(72) Inventor: YIFRACH, Aharon 7861619 Ashkelon (IL) (74) Representative: Grünecker Patent- und Rechtsanwälte PartG mbB  Leopoldstraße 4 80802 München 80802 München (DE)