GPS World - February 2008 - (Page 30) SYSTEM DESIGN & TEST | Galileo Galileo Validation The Navigation Message The GIOVE-A satellite broadcast Galileo’s first signals on January 12, 2006. GIOVE-B is scheduled for launch on April 27, 2008. The authors describe generation of the first Galileo navigation messages, operational and performance aspects, and signal improvements. Some improvements have been already identified, and their implementation is ongoing. Michel Tossaint, Stefano Binda, Jörg Hahn, and Marco Falcone, European Space Agency 30 GPS World | February 2008 B oth Galileo In-Orbit Validation Element (GIOVE) satellites can transmit prototype Galileo signals in all three bands, E1, E6, and E5a/E5b, with signal sufficiently representative to the envisaged final Galileo signals to enable the securing of the frequency filing, and to enable demonstration of preliminary navigation services. The provision of the navigation messages can be accommodated through the uploading of data files over the S-band communications link, which are then provided to the navigation signal generator and incorporated into the navigation transmissions. The GIOVE-A navigation signal-in-space interface control document (SIS ICD) is available from ESA’s GIOVE web site: www.giove.esa.int/images/userpage/GIOVEA_SISICD.pdf. Following in-orbit test review of GIOVE-B, its navigation SIS ICD will also be made available in summer 2008. Generating Nav Messages Transmission of the navigation message is a key element of any GNSS system. Without the information contained in the message, the user would not be able to fruitfully take benefit of the www.gpsworld.com http://www.giove.esa.int/images/userpage/GIOVEA_SISICD.pdf 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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