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Inside GNSS magazine • Volume 3, Number 3

Spring 2008

Online News, Articles, and Features

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Cover Story

Less Is More–The Potential of Partial IMUs for Land Vehicle Navigation

Microelectromechanical system-based INS/GPS navigation designs are getting closer to the low cost, small size, and uninterrupted positioning solutions the automobile market demands. But MEMS inertial sensors are still too pricey for low-end civilian applications. Here’s a solution.

GNSS World

U.S. PNT Initiative: E Pluribus Unum?

From a distance, it might look easy: the running of a GNSS system by a single country. But in the complex world of U.S. politics, it’s a wonder that anything gets worked out at all. And yet the National Space-Based Positioning,Navigation, and Timing initiative seems to be gaining some traction.

Articles
Technical Article

Double Estimator–A New Receiver Principle for Tracking BOC signals

Receiver designers describe an innovative approach to signal tracking and processing issues associated with the binary offset carrier (BOC) modulation that will be used on modernized GPS and Galileo services. This radically different approach combines two independent estimates of the input signal’s time delay to create a single joint estimate that fully exploits the capabilities of BOC without running into problems of false lock.

Technical Article

The Art of ARTUS–A Second-Generation Galileo/GPS Receiver

Europe’s Galileo program is seeking to accelerate receiver technology development even as the spacea and ground segments of the system are being implemented. A group of companies have collaborated on development of a geodetic-grade Galileo-GPS receiver: ARTUS. The engineering team in charge of the project describes their work to date, including tests that tracked signals from China’s Compass system as well as GIOVE-A and GPS.

Technical Article

GNSS on the Go–Sensitivity and Performance in Receiver Design

It’s a challenging world out there for user equipment, with ever more mobile applications and harsh environments. This article offers a roadmap for sensitive, robust and cost-effective receiver design.

Columns & Editorials
Thinking Aloud

Persuasive Arts

Formation of the National Space-Based Positioning, Navigation, and Timing Executive Committee (PNT ExCom) three years ago occurred under circumstances as awkward as its interminable name.

GNSS Hotspots

GNSS Hotspots

GNSS data points and factoids to amuse and inform.

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