OEM

September 1, 2010

Challenged Positions: Dynamic Sensor Network, Distributed GPS Aperture, and Inter-nodal Ranging Signals

By GPS World Staff

June 25, 2010

Spectracom Releases 8-Channel GPS Simulator for Nav Device Testing

By GPS World Staff

At the JPO. Frank Butterfield of Aerospace, Col. Parkinson, and Cdr. Bill Huston, deputy JPO director from the U.S. Navy, in the early 1970s. A model of a Phase I GPS satellite stands on the table between the latter two. (Credit: Bradford W. Parkinson and Stephen T. Powers)

June 1, 2010

Part 2: The Origins of GPS, Fighting to Survive

By GPS World Staff

Mathematician Bill Guier (l) and physicist George Weiffenbach (r), told APL Research Center director Frank T. McClure (c), about their success using Doppler tracking for satellites. “McClure’s brain started going into fast forward,” remembered John Dassoulas. “Knowing the navigational challenges the U.S. Navy faced, McClure said, ‘Well, if you can find out where the satellite is, you ought to be able to turn that problem upside down and find out where you are.’" (Credit: Bradford W. Parkinson and Stephen T. Powers)

May 1, 2010

Part 1: The Origins of GPS, and the Pioneers Who Launched the System

By GPS World Staff

Figure 8. (a) Frequency distribution of 12 1-hour samples of GPS height data; (b) the 12 1-hour samples combined.

May 1, 2010

Innovation: Accuracy versus Precision

By Richard B. Langley

April 12, 2010

Aeroflex Introduces Portable Positional Simulator for GPS/Galileo Receivers

By GPS World Staff

April 1, 2010

Innovation: GPS by the Numbers

By Richard B. Langley

April 1, 2010

Galileo Test User Receiver

By GPS World Staff

April 1, 2010

The System: Vistas from the Summit

By Alan Cameron

March 1, 2010

Innovation: Hybrid Positioning

By Richard B. Langley

March 1, 2010

On the Edge: Sharing GNSS Wealth

By GPS World Staff

February 1, 2010

Innovation: Mobile-phone GPS antennas

By Richard B. Langley

Challenged Positions: Dynamic Sensor Network, Distributed GPS Aperture, and Inter-nodal Ranging Signals

Spectracom Releases 8-Channel GPS Simulator for Nav Device Testing

Part 2: The Origins of GPS, Fighting to Survive

Part 1: The Origins of GPS, and the Pioneers Who Launched the System

Innovation: Accuracy versus Precision

Aeroflex Introduces Portable Positional Simulator for GPS/Galileo Receivers

Innovation: GPS by the Numbers

Galileo Test User Receiver

The System: Vistas from the Summit

Innovation: Hybrid Positioning

On the Edge: Sharing GNSS Wealth

Innovation: Mobile-phone GPS antennas

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