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Inside GNSS magazine • Volume 2, Number 8

November/December 2007

Online News, Articles, and Features

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Cover Story
Technical Article

GNSS & Space Weather

Making the Least Out of Solar Max

Satellite signals propagating through the Earth’s atmosphere can be profoundly affected when the Sun acts up, but a U.S. federal agency now offers help for users to minimize the effects on their GNSS-dependent activities.

Article
Technical Article

Measuring Up: Certification Processes and Testing of A-GPS Equipped Cellular Phones

Interest has surged as wireless carriers and mobile handset manufacturers have adopted GPS technology. But how do carriers and end users know that their A-GPS products will work?

Columns & Editorials
Working Papers

Active GNSS Networks and the Benefits of Combined GPS + Galileo Positioning

Over the past 10 years, GNSS reference networks have simplified and extended the range of high-precision positioning over longer distances with the aid of differential corrections. However, a number of operational and environmental factors continue to limit the full realization of these techniques’ potential. Access to and use of additional satellite signals from multiple GNSS systems could help address these limitations. This column examines the potential benefit of GPS + Galileo positioning under a variety of ionospheric conditions.

GNSS Solutions

Galileo Open Service and Weak Signal Acquisition

How will the Open Service Galileo signal in space change the acquisition process in GNSS receivers? What  factors affect the acquisition of weak GNSS signals and what can be done to alleviate them?

Thinking Aloud

GNSS Believer

Technology agnostic. Now there's an interesting term. . . it has
such a fine post-Enlightenment ring to it, connoting an analytical,
studied approach to things. But when it comes to space-based
positioning, navigation, and timing (PNT), I'm not one.

I'm a GNSS believer. I'm for it. I'm a big fan.

Human Engineering

Elizabeth Cannon: Geomatics Innovator

An inventor and technology transfer expert, her trademark is taking an inexpensive device and finding a new use for it that raises the bar for accuracy in navigation

GNSS Hotspots

GNSS Hotspots

GNSS data points and factoids to amuse and inform.

Ethiopia; Iceland; Copenhagen; Moscow; Easter Island

360 Degrees
Industry View
New Products
93 • GNSS Receivers

Synergy Smart Antenna

94 • Integrated Devices

Chip-Scale Digital Compass

95 • Integrated Devices

Zupt Portable Inertial Nav Unit

China Satellite Navigation Conference
Signals
Trimble
Trimble
Jammer Dectector
Sensonor
Spectracom
CAST
NovAtel
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