Archives

Webinar Brief – A Closer Look at L5: The Future of High-Precision GNSS

March 18, 2011 - By

Yesterday I conducted a webinar titled "A Closer Look at L5: The Future of High-Precision GNSS." Preparing for it was quite interesting, so I thought I'd share some of the slides I produced (and had produced) for the webinar. I think you'll find them interesting. read more

This article is tagged with and posted in Newsletter Editorials, Opinions, Survey, Survey Scene

A Look at the Rugged Handheld Algiz 7

March 15, 2011 - By

The warfighters have spoken. My correspondence lately has been full of questions about tablet and handheld computers. My sources at AT&T and Verizon tell me that the number of iPads in Iraq and Afghanistan have doubled in the last year alone. The problem is that Apple iPads and iPhones, for all their ubiquity, are not rugged in any sense of the word. Enter Handheld US with the Algiz 7. read more

This article is tagged with and posted in Defense, Defense PNT Newsletter, Newsletter Editorials, Opinions

Beyond Hyper-Local and Location Enhanced

March 15, 2011 - By

Be all you can be. Being location enabled or “hyper local” isn’t enough. Mobile applications are also trying to increase discoverability, push into Group-On couponing territory, and proactively deliver more relevant recommendations to users. Loopt announced limited-time and perishable inventory deals to users within proximity. Google has introduced an “open now” filter to local mobile search to find nearby businesses that are open. read more

This article is tagged with and posted in Newsletter Editorials, Opinions, Wireless LBS Insider

I’m Buying A New RTK Receiver. What Should I get?

March 15, 2011 - By

In light of this weeks webinar, A Closer Look at L5: The Future of High-Precision GNSS, and spurred by an email from a reader about how to sift through all the GPS/GNSS receiver choices, following are my thoughts if you're looking to purchase an RTK receiver today. read more

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With Record Crowd, Mobile World Congress Market Emphasis Shifts

March 8, 2011 - By

The recent Mobile World Congress in Barcelona had a record 60,000 attendees. Many industry companies were either exhibiting or attending to kick tires to see how the international location-based services market is faring. Industry observers are saying the focus of the trade show has gone from European-centric markets to a broader view, particularly as new technology and standards evolve and mature. read more

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LightSquared Saga, and Recent Solar Activity

March 2, 2011 - By

This week I'm following up on my article from a couple of weeks ago about the potential effects of LightSquared's plans. As a user of high-precision GPS receivers (particularly GPS L1 sub-meter, but also dual-frequency), you should be particularly concerned about this issue. I'll tell you why. Also, I have a note on recent the solar activity. read more

This article is tagged with and posted in Newsletter Editorials, Opinions, Survey, Survey Scene

Innovation: Realistic Randomization

March 1, 2011 - By

New Way to Test GNSS Receivers
In this month’s article, we look at an approach to GNSS receiver testing that uses realistic randomization of signal amplitudes based on histograms of carrier-to-noise-density ratios observed in real-world environments. It can be applied to any simulator scenario, independent of scenario details (position, date, time, motion trajectory, and so on), making it possible to control relevant parameters such as the number of satellites in view and the resulting dilution of precision independent of signal-strength distribution. The method is amenable to standardization and could help the industry to improve the testing methodology for positioning devices — to one that is more meaningfully related to real-world performance and user experience. read more

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