While GPS is currently leading the pack in terms of satnav system implementation, at a recent UN International Committee on Global Navigation Satellite Systems conference it was clear that competing systems are getting closer and could overtake it during the next decade. Presentations from Europe, Russia and China described active developments of worldwide satnav constellations, while India and Japan are moving ahead with regional networks.
Accord Technology (Booth No. 520) is promoting its NexNav line of GPS WAAS receiver technology, which supports LP/LPV approaches and new ADS-B standards. A joint venture of Accord Software & Systems of Bangalore, India, and NexGen Avionics, Accord is also announcing appointments of R. Shenoy Manur, CEO; Hal Adams, COO; and Randy Shimon, v-p, engineering and compliance.
How times change. In the 1990s, the Departments of State and Commerce, backed by the Department of Defense and the GPS industry, were busy persuading foreign nations that with GPS available to everyone worldwide, they shouldn’t waste their money launching their own satnav systems. But the genie got out of the bottle anyway.
It’s certainly a comforting feeling, watching the avionics techs remove old black boxes from your airplane and replace them with the latest units on the market. You’ll now enjoy much better performance, vastly improved reliability, great warranty support and the latest technology that money can buy–but not for long.
NOAA’s National Geodetic Survey last month said it incorporated 43 new GPS tracking sites into the continuously operating reference station (CORS) network, including 13 sites established by the FAA as part of its wide area augmentation system (WAAS). Four of the new WAAS sites are located in Alaska, four in Canada and five in Mexico. The network now consists of more than 1,200 sites worldwide.
Operators in the future will possibly be able to use X-rays from pulsating stars–or pulsars– light years away from earth to navigate with the same accuracy as GPS.
European nations apparently have resolved their objections over budgeting of Galileo, Europe’s $4.2 billion rival to GPS. Several EU nations had voiced concern about Galileo’s high cost, with some countries, most recently Spain, complaining they had been left out of commercial bidding negotiations. Under the final plan, Spain’s share increases from 9.5 percent to 10.25 percent. The cost of Galileo is being shared by 15 European countries.
The DOT Volpe Center’s September 10 report on the vulnerability of GPS to jamming and other interference, in addition to the events of the following day, have greatly heightened national concerns about the security of the satellite system and the degree of dependence that should be placed on it as the backbone of our future ATC system.
Last year was a challenging time for Galileo, Europe’s fledgling global navigation satellite system (GNSS). It started with the collapse of the private consortium established to build the system and culminated in European Union transport ministers making a “do or die” decision to allow the European Commission (EC) to manage the project in conjunction with the European Space Agency (ESA).
The FAA’s original plan to transition to sole-means GPS is no longer practical and some form of backup will be required for the foreseeable future, according to speakers at a recent Navigation Industry Day. This event was sponsored by the DOT, FAA and Civil Aviation Advanced Systems Development (CAASD), which is a component of the federally-funded MITRE research and development center and a key FAA think-tank resource.