From the Magazine

Directions 2015: What It Takes to Make a Gold Standard

December 1, 2014By
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Last year in my “Directions” article, I emphasized the commitment made by the U.S. government to ensure GPS signals are available to all users, and I shared some of our excitement in the GPS Directorate regarding the modernized capabilities we are developing and fielding. This year I’d like to share with you progress we’ve made in the past 12 months, provide an update on the modernization initiatives, and challenge civil users and receiver companies to innovate and accelerate these modernized capabilities for users worldwide. read more

The Business — December 2014

December 1, 2014By

The Business section from the December 2014 issue of GPS World. Download the PDF. Includes: Qualcomm to Acquire SiRF Chipmaker CSR OriginGPS Launches Nano Spider for Wearables, Watches Samsung Smart Watch Has GPS + GLONASS Satlab Launches on-the-Pole Survey Receiver Smart Antenna Designed for Urban Canyons Telit GPS Module Helps Migration to Full GNSS Researchers Honored with Water Prize Briefs read more

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Expert Advice: Managing GPS, Take Two

December 1, 2014By

By John Lavrakas, Advanced Research Corporation What a difference eight years can make! My September 2006 GPS World article “Managing the GPS Constellation for Today’s Needs” dealt with GPS performance issues many high-precision users then faced. Demanding applications of real-time precision positioning, such as precision agriculture and machine control, did not find enough satellites in view to support their needs. I... read more

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The Fashion Demands of Always-On

November 25, 2014By
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As location penetrates smaller and smaller devices that lack memory and computation power, GNSS chips must reacquire the standalone capability that they shed when first going to small form factors such as phones. A new chip with a new architecture demonstrates navigation and tracking and avoids burdening its main processor with heavy software. read more

GNSS Lies, GNSS Truth

November 6, 2014By
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A new method detects spoofing attacks that are resistant to standard RAIM technique and can sense an attack in a fraction of a second without external aiding. The signal-in-space properties used to detect spoofing are the relationships of the signal arrival directions to the vector that points from one antenna to the other. A real-time implementation succeeded against live-signal spoofing attacks aboard a superyacht cruising in international waters. read more

The Business & Product Showcase — November 2014

November 1, 2014By

The Business section from the November 2014 issue. Download the PDF. Includes: InterGeo 2014 Trimble Expands Portfolio for Surveyors, Adds GIS Products; Topcon Announces Geodetic Reference Receiver and Antenna; Carlson Software Introduces Surveyor2 Data Collector at InterGeo; Hemisphere GNSS Offers Survey-Grade Antennas; Sokkia Announces Next-Generation Geodetic Reference Receiver; Juniper’s Rugged Handheld Designed for Data-Collecting Efficiency Plus: Applanix Offers Single-Board GNSS-Inertial System... read more

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Toward a Unified PNT — Part 2

October 31, 2014By
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The coming requirements of greater accuracy and reliability in a range of challenging environments for a multitude of mission-critical applications require a multisensor approach and an over-arching methodology that does not yet exist. read more

Toward a Unified PNT — Part 1

October 2, 2014By
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Complexity and Context: Key Challenges of Multisensor Positioning
The next generation of navigation and positioning systems must provide greater accuracy and reliability in a range of challenging environments. No single navigation technology is robust enough, so a multisensor solution is required. read more