GPS World, January 2012

Industry news and developments GPS Galileo GLONASS BUSINESS THE GNSS DESIGN TEST ITT Exelis Chronos Team on Interference Mitigation ITT Exelis and Chronos Technology interruption of the energy supply Ltd have agreed to jointly pursue and breakdown of communications develop product offerings for the GNSS transport and financial services and interference detection and mitigation potential loss of life with no operational IDM market monitoring detection recourse or Satellite based positioning back up navigation and timing PNT systems Chronos Technologys GAARDIAN are vulnerable to many factors project has largely concluded its threeyear such as signals jamming resulting run to deliver prototype sensors in potentially devastating system failures The collaboration between ITT Exelis and Chronos Technology will allow both companies to respond to the IDM market by offering a set of complementary products and solutions The British European U S and global economies are vulnerable by their dependence on GPS GNSS to and probes to detect interference and give alarms as well as detailed analyses of the GNSS environment The follow on SENTINEL project is mid way through its two year life to take the next requisite steps Actually locating the interference categorizing it determining its extent giving a determination of trust in SENTINEL will research detection quantification and location of interference to GNSS GNSS and addressing spoofing The project has a large user base in law enforcement and government For more than 37 years ITT Exelis payloads and payload components have been on board every GPS satellite SURVEY MARINE Geneq Introduces Searchable Worldwide DGPS Beacon Map Geneq Inc has introduced a searchable online map of DGPS beacon stations that allows users to search for free DGPS corrections anywhere in the world Free high precision DGPS corrections are broadcast in 42 countries around the world from terrestrial towers at ranges of up to 500 km from each tower Each tower supports an unlimited number of users and provides free DGPS corrections as accurate as 50 cm Geneq has assembled compiled and confirmed the most comprehensive list of DGPS base stations around the world the company said The vast majority of the stations and their details have been confirmed with the station operator By clicking on the icon representing a tower details are displayed including station name transmitting identifier broadcast frequency bit rate nominal range broadcast message types and reference datum The Google Earth interface with an ellipse showing the coverage area provided by each DGPS station provides a user friendly interface to search the world for sources of free DGPS corrections Geneq said DGPS beacon corrections are suited for marine navigation over water as well as high accuracy GIS mapping on land and water The DGPS correction broadcast in the 2835 325KHz frequency range propagates well over rugged terrain providing broad DGPS coverage over many parts of the world It is used by mapping professionals in forestry utility agriculture other natural resources industries and municipal state and federal government GPS World January 2012 www gpsworld com 18