开始:VCALENDAR方法:发布开始:VEVENT DESCRIPTION:Near You Event - SAT NAV - MUCH MORE THAN GPS BUT LESS THAN PER FECT\n\nEvent Type: Technical lecture\n\nIndustry Sector: Other Industries / Sectors\n\nSpeak Details: Professor Malcolm Macleod FREng\, QinetiQ Ltd and Strathclyde University\n\nDescription : GPS was the first global Sate llite Navigation System\; now there are four - why so many? To work they n eed to know the positions of many orbiting satellites accurately &ndash\; why was such a challenging method chosen? Each satellite transmits lots of signals &ndash\; why? Receivers have shrunk from tall cabinets to handhel d devices &ndash\; but there are still challenges.\nProfessor Macleod will \;explain how smartphone SatNav uses tricks to work faster and save p ower and describe how the uses of SatNav have grown far more than was ever envisaged. But SatNav technology has limitations &ndash\; such as its lim ited accuracy and its susceptibility to interference and he will discuss h ow new receiver technologies are combatting those.\n\nFor more information &\; to book\, go to : https://www.iop.org/events/satnav-much-more-gps- less-perfect\n\nContact Details: Kevin Blacktop DTEND:20230215T203000 DTSTAMP:20230627T132818Z DTSTART:20230215T190000 LOCATION:Hereford University Centre\, Herefordshire and Ludlow College\, Fo lly Lane\, Hereford\, HR1 1LS\, United Kingdom SEQUENCE:0 SUMMARY:SAT NAV - MUCH MORE THAN GPS BUT LESS THAN PERFECT UID:83a15bfe-22e1-4ed6-8f36-15a1584814ec END:VEVENT END:VCALENDAR