second outage: watt, 403-473 MHz Message Formats NMEA-0183 ALM, GBS, GGA, GLL, GRS, GSA, GST, GSV, MLA, RMC, RRE, VTG, ZDA, DTM, GFA, GNS, HDT, ROT, TTM Differential Correction 2.3 3.0, types 1, 2, 3, 9, 31, 34, GAGAN), Navigation: Ensures will transition one mode down next smoothly position jumps• runs background crosscheck primary PVT solution• listen sources at once apply dominant correction• takes advantage statistical filtering certain assumptions discard outlying data• Shading transitions followed jumps StarFire: QuickStart Reduces convergence time pull instantly, provided known position• Saves users valuable field, increasing productivity• Convergence almost eliminated many An optional service receive corrections over Internet• Provides access environments satellite unavailable, deep urban canyons high latitude locations• Available modes:  Once per (streaming)  seconds• If get internet connection, Improves productivity field eliminating pull-in after outage• Helps ride short minute• Regains within entering mode• When Start, minutes, achieving maximum uptime• Adopts MBRTK technique• pre-event state converged• Uses last fix resolve post-event errors conjunction corrections• Re-convergence due temporary loss nearly Multipath Rejection performs comparison Narrow Early minus Late discriminator• pulse polarization detection discriminates anomalies• Phase error between composite direct path signal• Sub-carrier channel detection• software architecture Allows operation distance We have tested 75 works!• Resolving ambiguities longer may fail initially• typical 3.5 cm• Customers better off using standalone• Long done if operational needs demand operate when lost range shading• StarFire-enabled falls out mode, automatically Base simultaneously• offset component• Rover 3rd party connections• twice normal period maintain since received base• don’t move lose User Offshore• Military Government• Agriculture• Survey• Construction Machine Control• UAV• And more Precise Point Positioning (PPP) world’s first Global Satellite-based Augmentation (GSBAS)- Performance function reference station, so freedom world- Real-time accuracy- Worldwide coverage- No necessary- Fully redundant, global, geostationary StarFireTM network distribution measure their world exceptional reliability unprecedented under (2 inches). broadcast via INMARSAT satellites, don't local postprocessing this accuracy. Furthermore, same available earth’s surface, sea, look angle 10° satellite, satellites. ApplicationsStarFire fully integrated modular systems. Applications benefit performance, availability include: Land Surveying• Offshore Positioning• Precision UAV Aerial Photogrammetry LIDAR• GIS Asset Mapping• Unmanned Vehicles• Government Coverage Area Methodology major advance compared earlier ground-based systems considers each independently. orbit clock calculated dual frequency receivers. These transmitted links, resulting minimal latency operation.All measures delay satellite. Tropospheric zenith delays multi-state model aided redundant observables. Integrity Each second, raw reliable centers located California (S.W., USA) Illinois (N.E., USA). tied latest realization International Terrestrial Reference Frame (ITRF) coordinate system. StarFire’s Atomic Time standard.The automated, continuously self-monitoring overseen around operators. Orbit both distributed circuits backups uplink stations. independent equipment monitors ensure reliability. Reliability 99.999% availability• Extensive checks• Realtime results• Redundancy throughout segments Redundant geographically separated hubs continuous, positioning. inherently robust calculate set become unavailable. horizontally vertically sigma).Unlike DGPS positions relative location, produces absolute ITRF time. nearest station.">