Successful launch of the second modernized Block IIR satellite, IIR-15(M2), on September 25 and scheduling of another IIR-M launch on November 14 underlines…

By Inside GNSS

The GPS Block IIF program continues to lose ground, with first launch of a satellite now projected as no sooner than May 2008…

By Inside GNSS

This is what happens when the grandchildren of Mickey Rooney and Judy Garland go out and “rent the old barn and put on…

By Inside GNSS

U.S. Department of Defense (DoD) contractors appear to be getting closer to fielding GPS-aided precision guidance systems that can withstand the arduous requirements…

By Inside GNSS

Shah Capital Partners, a private equity firm focusing on technology, will acquire GNSS receiver manufacturer Thales Navigation from the Thales Group, of Paris,…

By Inside GNSS

The consortium negotiating to build and operate Europe’s Galileo system now expects to sign an agreement with the Galileo Joint Undertaking (GJU) by…

By Inside GNSS

Okay, now it’s official: The GPS Block III contract award has been delayed from Fiscal Year 2006 (FY06) to Fiscal Year 2007 (FY07).

By Inside GNSS

The GPS program appears to be struggling on several fronts recently. GPS III, the next-generation modernization project for the space and ground segments,…

By Inside GNSS

Within weeks of a bilateral working group’s recommendation for a common civil GNSS signal design, the European Galileo and U.S. GPS programs have…

By Inside GNSS

An ad hoc working group has begun sorting through issues surrounding the recent formation of the International Committee on GNSS (ICG).

By Inside GNSS

Russian officials are working to develop a plan that will meet Russian President Vladimir Putin’s directive to have the full GLONASS constellation in…

By Inside GNSS

Risk allocation, avoidance, and management are the watchwords of the day as the contract negotiation for the Galileo concession moves into its endgame.

By Inside GNSS

Q: What is adaptive nulling vs. adaptive beamforming? What are the advantages and disadvantages?

A: Adaptive arrays are perhaps the single most powerful antijamming tool in the GNSS systems engineer’s toolkit. They can provide anywhere from 15 to 90 dB of jamming rejection depending on the specific architecture used. Their main disadvantage is that they require an array of antenna elements, each spaced about four inches apart (center to center), and thus are physically large.

By Inside GNSS

The development and testing of precision ballistic and guided weapons require the occasional discharge of those weapons. For newer weapons with greater operational envelopes, this often requires testing over very large areas. To meet this growing requirement, weapon testing and training has migrated from land based firing ranges to offshore ranges, such as the U.S. Air Force (USAF) Eglin Joint Offshore Test and Training Area in the Gulf of Mexico near the northern coast of Florida.

By Inside GNSS

The Bush Administration’s Fiscal Year 2007 (FY07) budget proposal for the Department of Defense (DoD), announced in February, allocates $315,314,000 in advanced technology…

By Inside GNSS