(19)

(11)

EP 2 962 123 A2

(12)

(88) Date of publication A3: 25.06.2015 (43) Date of publication: 06.01.2016 Bulletin 2016/01 (21) Application number: 13876483.2 (22) Date of filing: 26.02.2013

(51) International Patent Classification (IPC):  G01S 13/08(2006.01) (86) International application number: PCT/US2013/027831 (87) International publication number: WO 2014/133488 (04.09.2014 Gazette 2014/36)

(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 (71) Applicant: Teledyne Technologies Incorporated Thousand Oaks, CA 91360 (US)	(72) Inventor: LONGSTAFF, Ian, Dennis West End Queensland 4101 (AU) (74) Representative: Keane, David Colman  Murgitroyd & Company Scotland House 165-169 Scotland Street Glasgow G5 8PL Glasgow G5 8PL (GB)