The Business and Technology of Global Positioning, Navigation, and Timing

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Read the Digital Issue: GPS World, May 2009

Attack the Course 32
Meeting GNSS Challenges 2009–2010 Who will move the frontiers of knowledge, the industry, and user applications forward in 2009 and 2010? What strategies will they employ and what risks will they undertake? In this fourth annual special report, we gain insight from key indivduals shaping the future of GNSS, and pick five technologies to watch.

INNOVATION
The WAAS L5 Signal 42
An Assessment of Its Behavior and Potential End Use L5 signals have been continuously transmitted by a pair of satellites for the past several years. The geostationary Earth-orbiting (GEO) satellites used by the Wide Area Augmentation System to provide enhanced integrity and accuracy include not only an L1 payload but an L5 payload as well. Although the WAAS L5 signals are not yet intended for end users, can they be used now for positioning and navigation and, if so, are there any caveats?

THE SYSTEM 10
L5 Arrives; Witness to History; Second Compass Satellite

THE BUSINESS 14
Mileage-Based Road Tax Gets Pumped; u-blox Announces Acquisition of Geotate; NavCom, Astrium Take Precision to Europe; White Electronic Awarded $8.6M in Contracts; more

OUTLOOK 18
Hitting the Mainstream
Contributing Editor Janice Partyka talks with Kanwar Chadha of SiRF Technology about the growing GPS focus at the Mobile World Congress in Barcelona.

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This is GPS World. But the magazine has never limited itself to coverage of the U.S. Global Positioning System. We have also chronicled the development of GLONASS and Galileo; of WAAS and LAAS and NDGPS and EGNOS and private correction services; of MSAS, and QZSS, and Beidou, and GAGAN, and GRAS.

In addition to this business of global navigation satellite systems, we examine many fellow travelers, the technologies that GPS has taken along for the ride in its efforts to achieve greater accuracy, availability, integrity, and robustness. We're talking inertial sensors, LORAN-C, lasers, LIDAR, electronic compasses, cellular signal positioning, video signal positioning, odometers, wheel speed sensors, ultra wideband, RFID, Bluetooth, DSRC, and more.

These draw our interest because GPS — as a concept now, not just a physical manifestation— has spread relentlessly, inexorably across the landscape, the seas, into air space, into outer space. It has dived deep into integration with these technologies, driven by designers and engineers crafting new solutions for challenging problems in the marketplace.

Wherever it goes, we follow. That's because we all need some understanding of, or at least familiarity with, integration issues to follow GPS/GNSS in its ever-widening sphere of influence.

And because our fold increases daily. GPS World readers now come from all high-tech sectors, as other industries realize they can benefit from high-accuracy position and timing. Thanks to our new Digital Edition, all qualified readers can now get GPS World.

We're global. We're about position. And we study systems. We're not only GPS. We're more.

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