GPS World - February 2008 - (Page 33) Galileo | SYSTEM DESIGN & TEST p FIGURE 6 E-GGTO performance according to E-GGT1 and E-GGTO2, for 10.-14.09. (left) and 14.-18.09.2007 (right) a single navigation solution based on both Galileo and GPS, with all clocks referenced to a single time scale. E-GST (the experimental version of GST) is driven by the free-running active hydrogen maser connected to the GESS GIEN station at INRiM in Turin, Italy. Actually, E-GST in GIOVE-M is defined as the observed (that is, apparent) clock of GIEN relative to the GPS part of the station, including the group delays up to the antenna. In particular, E-GST is defined based on the iono-free P1-P2 GPS pseudorange combination. While E-GST is clearly defined and accessible through GIEN, GPSt can only be estimated (actually evaluated) in different ways. One possibility is based on using the GUSN or USN3 stations installed at the U.S. Naval Observatory (assumed to be calibrated to the USNO master clock that is continuously monitored versus GPSt) and evaluating E-GGTO1 as the difference between the GIEN and the GUSN/USN3 observed clocks. Another possibility to evaluate GPSt is by comparing the GPS clocks broadcast in the navigation message (obviously referred to THE CHALLENGES OF MAPPING URBAN HOLLAND. AS SEEN BY NOVATEL’S GPS+INS TECHNOLOGY. Moerdijk, Oostflakkee or wherever; you can now map cities as if you’re right there. Thanks to Cyclomedia’s 360-degree panoramic digital mapping with NovAtel precise positioning technology onboard, the world appears in 3-D because, well, it is. Incorporating NovAtel’s SPAN GPS+Inertial Measurement Unit system, accurate and robust positioning data is possible even in challenging urban conditions where GPS alone is limited. 3-D mapping is just one of many worldwide applications successfully utilizing NovAtel’s precise positioning products. To learn more about the products that powered this application, navigate your way to novatel.com. NovAtel’s precise thinking makes it possible. 1-800-NOVATEL (U.S. & Canada) or 403-295-4900 | Europe +44 (0) 1993 852-436 | SE Asia & Australia +61 (2) 8668 4073 | sales@novatel.com February 2008 | GPS World www.gpsworld.com 33 http://novatel.com http://novatel.com http://www.gpsworld.com
Table of Contents Feed for the Digital Edition of GPS World - February 2008 GPS World - February 2008 Contents Out in Front Expert Advice Galileo's Second Coming Soon UPS First to Use ADS-B European Industry Group Galileo Validation 2008 Antenna Survey Tsumani Detection by GPS Classifieds Advertisers Index Seen + Heard GPS World - February 2008 GPS World - February 2008 - GPS World - February 2008 (Page 1) GPS World - February 2008 - GPS World - February 2008 (Page 2) GPS World - February 2008 - GPS World - February 2008 (Page 3) GPS World - February 2008 - Contents (Page 4) GPS World - February 2008 - Contents (Page 5) GPS World - February 2008 - Out in Front (Page 6) GPS World - February 2008 - Out in Front (Page 7) GPS World - February 2008 - Expert Advice (Page 8) GPS World - February 2008 - Expert Advice (Page 9) GPS World - February 2008 - Expert Advice (Page 10) GPS World - February 2008 - Expert Advice (Page 11) GPS World - February 2008 - Galileo's Second Coming Soon (Page 12) GPS World - February 2008 - Galileo's Second Coming Soon (Page 13) GPS World - February 2008 - Galileo's Second Coming Soon (Page 14) GPS World - February 2008 - UPS First to Use ADS-B (Page 15) GPS World - February 2008 - UPS First to Use ADS-B (Page 16) GPS World - February 2008 - UPS First to Use ADS-B (Page 17) GPS World - February 2008 - UPS First to Use ADS-B (Page 18) GPS World - February 2008 - UPS First to Use ADS-B (Page 19) GPS World - February 2008 - UPS First to Use ADS-B (Page 22) GPS World - February 2008 - UPS First to Use ADS-B (Page 23) GPS World - February 2008 - UPS First to Use ADS-B (Page 26) GPS World - February 2008 - UPS First to Use ADS-B (Page 27) GPS World - February 2008 - European Industry Group (Page 28) GPS World - February 2008 - European Industry Group (Page 29) GPS World - February 2008 - Galileo Validation (Page 30) GPS World - February 2008 - Galileo Validation (Page 31) GPS World - February 2008 - Galileo Validation (Page 32) GPS World - February 2008 - Galileo Validation (Page 33) GPS World - February 2008 - Galileo Validation (Page 34) GPS World - February 2008 - Galileo Validation (Page 35) GPS World - February 2008 - Galileo Validation (Page 36) GPS World - February 2008 - Galileo Validation (Page 37) GPS World - February 2008 - 2008 Antenna Survey (Page 38) GPS World - February 2008 - 2008 Antenna Survey (Page 39) GPS World - February 2008 - 2008 Antenna Survey (Page 40) GPS World - February 2008 - 2008 Antenna Survey (Page 41) GPS World - February 2008 - 2008 Antenna Survey (Page 42) GPS World - February 2008 - 2008 Antenna Survey (Page 43) GPS World - February 2008 - 2008 Antenna Survey (Page 44) GPS World - February 2008 - 2008 Antenna Survey (Page 45) GPS World - February 2008 - 2008 Antenna Survey (Page 46) GPS World - February 2008 - 2008 Antenna Survey (Page 47) GPS World - February 2008 - 2008 Antenna Survey (Page 48) GPS World - February 2008 - 2008 Antenna Survey (Page 49) GPS World - February 2008 - Tsumani Detection by GPS (Page 50) GPS World - February 2008 - Tsumani Detection by GPS (Page 51) GPS World - February 2008 - Tsumani Detection by GPS (Page 52) GPS World - February 2008 - Tsumani Detection by GPS (Page 53) GPS World - February 2008 - Tsumani Detection by GPS (Page 54) GPS World - February 2008 - Tsumani Detection by GPS (Page 55) GPS World - February 2008 - Tsumani Detection by GPS (Page 56) GPS World - February 2008 - Classifieds (Page 57) GPS World - February 2008 - Seen + Heard (Page 58) GPS World - February 2008 - Seen + Heard (Page 59) GPS World - February 2008 - Seen + Heard (Page 60)
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