B: Applications

GPS Modernization Stalls

With the optimism of college-bound seniors touring the Ivy League, GPS managers have been weighing options to dramatically change the GPS constellation. Now, after studying the costs, considering the benefits, and assessing the funding climate, officials have made the starkly fiscal decision to stick close to home and take a few extra years to finish. 

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By Dee Ann Divis
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Igor Stojkovic

Igor Stojkovic is the principal search and rescue engineer on the Galileo program in ESA, responsible for design and development of the SAR/Galileo component of the MEOSAR System.

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By Inside GNSS
March 17, 2014

Who’s Your Daddy?

In this article, we will take a look at the various GNSS signals from the perspective of their cost-benefit tradeoffs. First, we’ll look at the evolution of consumer GPS architecture to date — where acquisition speed and sensitivity have been the main drivers of receiver architecture. That architecture has evolved rapidly to take full advantage of the characteristics of the GPS C/A code.

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By Inside GNSS

Galileo Works!

The objective of the IOV phase was to launch the first four operational Galileo satellites and to deploy the first version of a completely new ground segment. During this phase, the European Space Agency (ESA) needed to validate — in the operational environment — all space, ground, and user components and their interfaces, prior to full system deployment. With the assistance of industry partners, ESA had to analyze the performance of the Galileo system and its components with the objective to refine the full operational capability (FOC) system.

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By Inside GNSS
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March 6, 2014

FY15 Budget: GPS III Procurement to Slow, Dual-Launch Funding Cut

The Air Force is slowing GPS modernization and dropping part of the funding for dual launch of satellites, said defense officials describing the President’s Fiscal Year 2015 (FY15) budget on Wednesday (March 5, 2014).

Air Force Undersecretary Eric Fanning said the Air Force would continue to “honor our investments and obligations” regarding the Global Positioning System but would “reprofile” the GPS III program so that it meets constellation sustainment demands.

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By Inside GNSS
February 27, 2014

E-GNSS for Road Transport: On Galileo’s Home Field

Road transport has always been a key sector for European GNSS, but safety- and security-related applications bring special challenges along with the opportunities. European Union (EU) officials speaking at a conference in Brussels last week explained why.

“Road transport is largest GNSS market opportunity,” said Gian-Gherardo Calini, head of market development at the European GNSS Agency (GSA). “This is 46.2 percent of the current GNSS market. Road transport is the key market.”

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By Inside GNSS
February 14, 2014

House Committee Moves to Block Loran-C Teardowns

Lawmakers overseeing the Coast Guard approved language this week that would stop the agency from dismantling facilities needed for eLoran, a proposed system that has gained wide support as a backup in case GPS signals are jammed, blocked, spoofed, or otherwise rendered unusable.

In “markups” or adjustments to language in the FY 2015 Coast Guard authorization bill, a House transportation subcommittee proposes to halt the tearing down of stations in the Coast Guard’s old Loran-C navigation system, which was turned off in 2010.

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By Inside GNSS
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