From the Magazine

Global Asset Management, 11 Years On

February 1, 2015By

Over a decade ago GPS World covered the introduction of the first battery-powered asset tracking device that operated over satellite networks, the AXTracker (“Going the Distance,” October 2003). More than ten years later, the technology has proven the market, and opened new markets. read more

Out in Front: Yes, We Have No Bananas

February 1, 2015By

What if the U.S. government stepped in and confiscated all your bananas? Grown foreignly, they lack proper accreditation to enter this country. That they have done so for years is no excuse. They are illegal. Those who consume said bananas engage in unlawful activity. Those who facilitate such consumption — you, in this case, whom we imagine to be a... read more

The Business — February 2015

February 1, 2015By

The Business and Hey, AU sections from the February 2015 issue. Download the PDF. The Business includes: GeoOptics Study Supports GNSS-RO SkyTraq Offers Module for Wearables Ford Autonomous Vehicle On the Way U.S. Army Explores eLoran PNT Briefs Hey, AU: Autonomous Unmanned includes: FAA Grants UAS Exemptions OriginGPS Module Powers Tiny Drone   read more

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All-Constellation Receiver: GNSS Location Hub for Smartphones with Galileo Support

January 7, 2015By
Norman-O

This tri-band receiver technology, when combined with baseband search and track engines, allows true simultaneous tracking of all current L1 GNSS signals, including GPS, GLONASS, BeiDou, Galileo, Quasi-Zenith Satellite System (QZSS), and satellite-based augmentation systems (SBAS). By Charles Norman and Andreas Warloe, Broadcom Corporation Starting with the first commercial GPS receivers, adding support for incrementally more complex GNSS systems presents significant... read more

The Business — January 2015

January 2, 2015By

The Business section from the January 2015 issue. Download the PDF. Includes: CSR Preparing for Large Indoor Location Market FAA Grants UAS Exemption to Trimble Navigation Leica’s GNSS Unlimited Allows for Upgrades Broadcom Launches Location Hub with Galileo Support for Smartphones SkyTraq GNSS Receiver Module Provides Indoor/Outdoor Positioning Briefs read more

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Expert Advice: Loose Coupling — And What’s Wrong With It

January 2, 2015By

Concerns raised about cascaded Kalman filters for loose coupling and/or usage of input data “massaged” in unknown ways are not new, but are routinely excused by requirements to use coordinates from receivers not providing measurement outputs. Often, however, a receiver’s internal 8-state extended Kalman filter (EKF) is not fed with precise carrier phase data — and even when it is, its velocity outputs (being both filtered and unaided) have limited ability to follow high dynamics. Velocity pseudomeasurements under those conditions interfere with IMU aiding. read more

GPS World Leadership Awards 2014

December 2, 2014By
The 2014 leadership awards, determined by a poll of 40 industry professionals, await the start of the ceremony.

GPS World’s sponsored 2014 Leadership Awards were bestowed in September during ION-GNSS+.  The Leadership Dinner was sponsored by Lockheed Martin, Exelis, Raytheon, and Braxton Technologies. SIGNALS UAVs Revolutionizing Aviation: Exciting Challenges for the PNT Community Sherman Lo, Senior Research Engineer and Associate Investigator (APNT), Stanford University. One of the architects of eLoran and a worldwide thought leader on alternative PNT.... read more

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The System: eLoran Operational on Eastern UK Coast

December 1, 2014By
Bridge of the Galatea, a GLA vessel that carries a eLoran receiver and conducted tests of the new system.

Back-up to Vulnerable GPS Signals Required for Busy Shipping Lanes The General Lighthouse Authorities (GLAs) of the UK and Ireland announced October 31 the initial operational capability of UK maritime eLoran. Seven differential reference stations now provide additional position, navigation, and timing (PNT) information via low-frequency pulses to ships fitted with eLoran receivers. The service will help ensure they can... read more