From the Magazine

On the Edge: The Precision to Carry On

March 1, 2015By
Components easily pack into a baseball-style case.

When asked to do a small survey job overseas, we were concerned about shipping bulky and expensive survey equipment. Shipping costs are not trivial. Add to that the real possibility that your survey equipment may be confiscated by the local authorities, as ours was in Djibouti, and the cost of shipping equipment becomes a substantial part of the overall job. There should be alternatives, especially if accuracy requirements are not stringent. read more

The Business — March 2015

March 1, 2015By

The Business section from the March 2015 issue. Download the PDF. Includes: Harris to Acquire Exelis GATE Facility Recertified Spectracom Offers RTK System Testing PlanetiQ Plans GNSS Weather Constellation Briefs   read more

This article is tagged with and posted in From the Magazine

The System: Leap-Second Confusion

March 1, 2015By

The United States Civil GPS Service Interface Committee (CGSIC) has issued a notice about a problem some receivers are having implementing the correct time. The U.S. Coast Guard Navigation Center has received reports of synchronization issues since the implementation of a leap second on Jan. 21. Users experiencing this problem should contact the receiver manufacturer for a firmware or software... read more

This article is tagged with , , , and posted in From the Magazine, GNSS, The System

Innovation: Python GNSS Receiver

February 1, 2015By
FIGURE 8. The trip back to Puno as determined by Receiver Y after cooperative scalar tracking and navigation computations. Compared to Figure 4, the navigation solutions are less noisy. Image courtesy of Google Earth and the GPS Visualizer.

An Object-Oriented Software Platform Suitable for Multiple Receivers
An experiment highlights the abilities of the Python Receiver, showing how it has been used to develop a software-defined GNSS receiver — one well-suited to processing data from a network of receiver front ends. read more

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

This article is tagged with , and posted in From the Magazine

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