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

GPS World Industry leaders look to GPS World for continuous innovation in delivery of the freshest, most comprehensive GPS/GNSS-related news to high-level corporate managers, project and engineering managers, product designers, researchers, and system developers.

GPS World, the magazine, has covered the global positioning industry since 1989.

GPS World's market-segmented microsites are the freshest out-of-the-box tools for professionals in every tech field that uses or seeks to use global positioning, navigation, and timing. Use the tabs at the top of this page to access these highly targeted, highly accurate source materials.

GPS World, Free Subscription

Geographic Eligibility: International

Offered Free by: Questex Media

Read the Digital Issue: GPS World, July 2009

COVER STORY
Network Corrections for Machine Control

Network-based real-time kinematic (NRTK) positioning reduces or eliminates the communication, integrity, and affordability problems associated with semi-automated guidance of bulldozers, excavators, and other equipment at centimeter-level accuracy. This new method addresses adequate height control, a crucial factor for machine-control users.

Accuracy improvements and cost reductions in the surveying field have both accelerated rapidly in recent years, driven by changes in work procedures that combine different instruments and techniques. Sensor integration for positioning and precise navigation is the principal innovation responsible for these advances. ...

Where is GIOVE-A Exactly? 42
Using Microwaves and Laser Ranging for Precise Orbit Determination Though Galileo’s GIOVE-A is a test satellite not necessarily ready for scientific use, orbit analyses with a reduced accuracy can help to identify weaknesses and suggest improvements. This month, the authors share work being carried out to precisely determine the orbit of GIOVE-A using SLR and microwave observations. This preliminary investigation will benefit the procedures to be implemented for the future Galileo constellation.
By Erik Schönemann, Tim A.
Springer, Michiel Otten, and Matthias Becker

Whoa, GAO!
Full Report Worth the Read
By Don Jewell
There is a 61-page version of the GAO report and a 15-page version.
My assessment of the report has changed markedly since I read the full report. Most of my objections concerning the Testimony version delivered to Congress were answered in the full-length report.

The full-length report is educational, even enlightening, although the recommendations are woefully inadequate. I have hopes that the dialog as well as the intense interest the report has created will continue for some time, possibly for years. That’s because a GAO report, by definition, should be much more than a conclusion or recommendation. It serves as an excellent quick look at a critical part of our national security infrastructure, the Global Positioning System.

Visit GPS World Website

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.

Comments (0)

Name

Email

Comment

smaller | bigger

Add Comment