GNSS

The red ellipses show the MMS orbit paths during the first and second phases of the mission. Each spacecraft uses GPS signals — which come from satellites situated along the green circle shown surrounding Earth — from the far side of Earth to track its position. (Credit: NASA/MMS)

July 8, 2015

NASA Goddard Team Sets High-Flying Record with Use of GPS

By GPS World Staff

GPS IIF-10. (Photo: ULA)

July 7, 2015

GPS IIF-10 Satellite Readied for July 15 Launch

By GPS World Staff

Figure 1. LightSquared propagation models can underestimate interference by more than a factor of 100 (>20 dB). Two-ray models accounting for ground reflections show LightSquared signals at levels 6 dB above free space predictions several miles out. (Figure from August 2011 GPS World.)

July 1, 2015

GPS Innovation Alliance Responds to Latest Lightsquared Comments

By GPS World Staff

Photo: China Satellite Navigation Conference

July 1, 2015

Expert Advice: The Tigers Claim Their Territory

By GPS World Staff

July 1, 2015

Thad Allen Discusses eLoran at GEOINT 2015

By GPS World Staff

June 30, 2015

IS-GNSS 2015 Extends Scholarship Paper Deadline

By GPS World Staff

June 30, 2015

It’s Leap Second Day! Time to Get in Sync

By Richard B. Langley

June 29, 2015

EGNOS Dream Now a Reality

By Tim Reynolds

(fFrom left) Congressman LoBiondo, UrsaNav CEO Chuck Schue and Harris Division President Pam Drew. (hoto Credit: Andrei Grebnev, UrsaNav)

June 25, 2015

eLoran Progresses Toward GPS Back-Up Role in U.S., Europe

By Alan Cameron

June 24, 2015

Will China Win the Automated Vehicle Race?

By GPS World Staff

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