ION GNSS 2012 is the world’s largest technical meeting and showcase of GNSS technology, products and services and brings together thought-leaders in the field to present new research, introduce new technologies, and exchange ideas.This year’s conference will feature pre-conference tutorials September 17 & 18, 2012 and more than 250 technical papers on a diverse array of topics including:Advanced Multi-Constellation Integrity ConceptsAdvances in Military GPS SystemsAlgorithms & MethodsAlternatives and Backups to GNSS (academic focus)Alternatives and Backups to GNSS (consumer/commercial focus)Aviation ApplicationsGalileo and other Emerging GNSS (COMPASS, QZSS, IRNSS)Galileo System Design and ServicesGeodesy and SurveyingGNSS Algorithms and MethodsGNSS and the AtmosphereGNSS Ground Based Augmentation Systems (GBAS)GNSS Simulation and TestingGNSS Space Based Augmentation Systems (SBAS)GPS and GLONASS ModernizationGPS and GNSS Interoperability for Military ApplicationsGPS/Galileo Compatibility and InteroperabilityIntegrated Applications of Earth Observation, Communication and GNSSInterference and Spectrum ManagementLand Based Applications LBS Technology and ApplicationsLocation Based ServicesMarine NavigationMulti-Constellation User ReceiversNew Multi-Constellation GNSS Product AnnouncementsNew Product and Commercial Service AnnouncementsNext Generation GNSS IntegrityPedestrian NavigationPortable Navigation DevicesPrecise Point Positioning and RTKPrecise Positioning and RTK for Civil ApplicationsPrecise Positioning and RTK for Military ApplicationsPreserving the Availability and Integrity of GNSS in Harsh EnvironmentsReceiver & Antenna TechnologyRegulatory Service ApplicationsRemote Sensing with GNSS & Integrated Systems