Archives

Future Wave: L1C Signal Performance and Receiver Design

April 1, 2011 - By

The new GPS L1C signal will be broadcast by the Block III satellites, with first launches as early as 2014. L1C innovations significantly enhance PNT performance as well as interoperability with other GNSS signals. The authors describe the benefits of its new features and how best to make use of each one. read more

This article is tagged with , , , , and posted in Design & Test

Innovation: GLONASS

April 1, 2011 - By

Developing Strategies for the Future
A team of authors from Russian Space Systems, a key developer of navigation and geospatial technologies in the Russian aerospace industry, describes the new L3 CDMA signal to be broadcast by GLONASS-K satellites and the progress to date in developing the SDCM augmentation system. read more

This article is tagged with and posted in From the Magazine, GNSS, Innovation

The System: First GPS Intereference Report Sent to FCC

April 1, 2011 - By

First Overload Interference/Desensitization to GPS Receivers, Systems, and Networks Report to FCC; Plus Save Our GPS Coalition Forms; WAAS Official Again; EGNOS SOL Operational; Russian SBAS Satellite Passes Transponder Tests read more

Out in Front: Dual Use, Single Front

April 1, 2011 - By

As it was in the beginning, now and always, and to the ages of ages — or at least into the conceivable near future: GPS was, is, and shall be a dual-use system. Why, then, reading through the March 15 report of the Technical Working Group (TWG) to the FCC on LightSquared/GPS interference, do we find no mention at all of military receivers? read more

This article is tagged with , , and posted in From the Magazine, Opinions

On the Edge: Making Peace: Surveyor’s GPS Device Serves as Mediator in Kenyan Land Dispute

April 1, 2011 - By

Early morning on February 2, 2011, I went to work in my job as a road surveyor in the Bungoma District of Kenya. Here, land disputes are common, though the government is trying to reduce the conflicts by issuing land titles and certificates. I carried with me a small handheld GPS, the Magellan Explorist 100. While I was using it, a stout man in early fifties approached me and introduced himself as a surveyor, too. He was very interested in the way I was walking around with the “gadget,” trying to locate a control point. read more

This article is tagged with , , , and posted in Survey