GPS World - May 2008 - (Page 4) May 2008 VOL. 19, NUMBER 5 | gpsworld.com » COVER STORY GPS WORLD EXCLUSIVE AVIONICS & TRANSPORTATION Safety Afoot | 29 Field Testing of a Pedestrian Alert System A pedestrian alert system can help reduce deaths and injuries caused by vehicle collisions with pedestrians, and could be adapted for bicycle safety, airport-ramp and construction-site pedestrian safety. By Charles Rodgers and Richard Blomberg 50+ Leaders to Watch | 36 Facing the Challenges of 2008/2009 Who will move the industry and its applications forward in 2008 and 2009? What strategies will they employ and what risks will they undertake? In this special report, we look ahead to identify key indivduals shaping the future of positioning, navigation, and timing (PNT). INNOVATION Making a Difference with GPS | 48 Time Differences for Kinematic Positioning with Low-Cost Receivers One of the difficulties with RTK-style positioning is resolving carrier-phase ambiguities. If you timedifference sequential carrier-phase measurements, the ambiguity actually disappears, and you can determine accurate relative positions using timedifferenced carrier-phase measurements. But there are some caveats. By Johannes Traugott, Dennis Odijk, Oliver Montenbruck, Gottfried Sachs, and Christian Tiberius OPINIONS & DEPARTMENTS THE SYSTEM Out in Front | 8 Re-Up for Leaders GPS III Contract Award Now a Reality Ð ? | 14 Raytheon Scores MUE Contract; Galileo Serves Second Course Letters to the Editor | 10 Expert Advice | 12 Do We Have Data? By Rob Lorimer THE BUSINESS Near-Space Location Boost | 18 Jules Verne' s Journey; Mapping Handheld Introduced Product Showcase | 56 Advertisers Index & Company Directory | 57 Marketplace Classifieds | 57 Pirate Defense; A Peek in Time; Caching in www.gpsworld.com BUSINESS OUTLOOK By Eric Gakstatter 4 GPS World | May 2008 RTK Crops Up in Precision Ag | 28 Seen + Heard | 58 http://gpsworld.com http://www.gpsworld.com
Table of Contents Feed for the Digital Edition of GPS World - May 2008 GPS World - May 2008 Contents Out in Front Letters to the Editor Expert Advice GPS III Contract Award Now a Reality? Near-Space Location Boost RTK Crops Up in Precision Ag Safety Afoot 50+ Leaders to Watch Making a Difference with GPS Product Showcase Advertisers Index & Company Directory Marketplace Classifieds Seen & Heard GPS World - May 2008 GPS World - May 2008 - GPS World - May 2008 (Page Cover1) GPS World - May 2008 - GPS World - May 2008 (Page Cover2) GPS World - May 2008 - GPS World - May 2008 (Page 3) GPS World - May 2008 - Contents (Page 4) GPS World - May 2008 - Contents (Page 5) GPS World - May 2008 - Contents (Page 6) GPS World - May 2008 - Contents (Page 7) GPS World - May 2008 - Out in Front (Page 8) GPS World - May 2008 - Out in Front (Page 9) GPS World - May 2008 - Letters to the Editor (Page 10) GPS World - May 2008 - Letters to the Editor (Page 11) GPS World - May 2008 - Expert Advice (Page 12) GPS World - May 2008 - Expert Advice (Page 13) GPS World - May 2008 - GPS III Contract Award Now a Reality? (Page 14) GPS World - May 2008 - GPS III Contract Award Now a Reality? (Page 15) GPS World - May 2008 - GPS III Contract Award Now a Reality? (Page 16) GPS World - May 2008 - GPS III Contract Award Now a Reality? (Page 17) GPS World - May 2008 - Near-Space Location Boost (Page 18) GPS World - May 2008 - Near-Space Location Boost (Page 19) GPS World - May 2008 - Near-Space Location Boost (Page 22) GPS World - May 2008 - Near-Space Location Boost (Page 23) GPS World - May 2008 - Near-Space Location Boost (Page 26) GPS World - May 2008 - Near-Space Location Boost (Page 27) GPS World - May 2008 - RTK Crops Up in Precision Ag (Page 28) GPS World - May 2008 - Safety Afoot (Page 29) GPS World - May 2008 - Safety Afoot (Page 30) GPS World - May 2008 - Safety Afoot (Page 31) GPS World - May 2008 - Safety Afoot (Page 32) GPS World - May 2008 - Safety Afoot (Page 33) GPS World - May 2008 - Safety Afoot (Page 34) GPS World - May 2008 - Safety Afoot (Page 35) GPS World - May 2008 - 50+ Leaders to Watch (Page 36) GPS World - May 2008 - 50+ Leaders to Watch (Page 37) GPS World - May 2008 - 50+ Leaders to Watch (Page 38) GPS World - May 2008 - 50+ Leaders to Watch (Page 39) GPS World - May 2008 - 50+ Leaders to Watch (Page 40) GPS World - May 2008 - 50+ Leaders to Watch (Page 41) GPS World - May 2008 - 50+ Leaders to Watch (Page 42) GPS World - May 2008 - 50+ Leaders to Watch (Page 43) GPS World - May 2008 - 50+ Leaders to Watch (Page 44) GPS World - May 2008 - 50+ Leaders to Watch (Page 45) GPS World - May 2008 - 50+ Leaders to Watch (Page 46) GPS World - May 2008 - 50+ Leaders to Watch (Page 47) GPS World - May 2008 - Making a Difference with GPS (Page 48) GPS World - May 2008 - Making a Difference with GPS (Page 49) GPS World - May 2008 - Making a Difference with GPS (Page 50) GPS World - May 2008 - Making a Difference with GPS (Page 51) GPS World - May 2008 - Making a Difference with GPS (Page 52) GPS World - May 2008 - Making a Difference with GPS (Page 53) GPS World - May 2008 - Making a Difference with GPS (Page 54) GPS World - May 2008 - Making a Difference with GPS (Page 55) GPS World - May 2008 - Product Showcase (Page 56) GPS World - May 2008 - Marketplace Classifieds (Page 57) GPS World - May 2008 - Seen & Heard (Page 58) GPS World - May 2008 - Seen & Heard (Page Cover3) GPS World - May 2008 - Seen & Heard (Page Cover4)
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