Commercial Systems Touted for Indoor Emergency Services

August 27, 2015By
OnStar booth features wrecked car to portray emergency messaging capabilities at APCO.

It is refreshing to see such nascent technology as indoor location being used to enable accurate emergency services response. That’s what’s going on right now as beacons, Wi-Fi and other technology that works inside, where GPS doesn’t work, is being tested nationwide by companies hoping for government adoption. With new FCC regulations that are finally trying to keep up with commercial location products, it may be a reality soon. What really drove location into wireless handsets was the 1990s FCC regulations — will they now drive indoor positioning? read more

Post-Mortem on Flight MH370 Crowdsource Search

August 27, 2015By
Janice Partyka

Last year, in a massive crowdsourcing effort, eight million volunteers from around the world sat at their computers and searched high-resolution satellite imagery looking for signs of Malaysia flight 370, which had left Kuala Lumpur and never arrived in Beijing. The effort was akin to putting thousands of digital helicopters into the sky above 340,000 square kilometers of ocean. The... read more

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NDGPS Destined for the Technological Boneyard

August 26, 2015By
"MARC AEM7s at BWI" by Ryan Stavely - Georgia_Trip_001. Licensed under CC BY-SA 2.0 via Commons.

Let us not exaggerate — nor prematurely announce — the death of a subsystem. However, the demise of the U.S. Nationwide Differential GPS (NDGPS) network can be confidently foretold. Although a Federal Register notice dated Aug. 18 merely seeks public comment on plans to shut down a large portion of NDGPS, the handwriting is on the wall. Once having writ,... read more

ION GNSS+ Preview: UAVs, Indoor Location and a Shark!

August 19, 2015By
The show floor at ION-GNSS 2014.

The Institute of Navigation (ION) GNSS+ conference Sept. 14-18 covers issues such as PNT privacy, includes a new UAV session, and brings back the popular indoor navigation demonstrations with a significantly larger group of companies demonstrating. read more

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L2C and Next-Generation Smart PNT Receivers

August 12, 2015By
SVN49 in space  (artist’s rendering).  The signal anomaly from SVN 49 alerted researchers to new possibilities in analysis and monitoring.

Are you using a legacy-model PNT (position, navigation and timing) receiver or a smart PNT receiver, and why does it matter? Don’t have a clue? Read on! Hint — L2C and CNAV (civilian navigation message format) are the major reason it matters. Yes, it’s all because of L2C, the controversial GPS civilian signal that seems to always be in the news and just... read more

Out in Front: Oh, the Wonder

August 6, 2015By
Katharine’s cruising over the past year.

Of it all. Of the broad expanse of the world and all its inhabitants, its layers, its depths and heights, the atmospheric mantle in which it wraps itself, its floating mountains of ice and its solid soaring peaks of rock and snow, its savage predators, and all its shades of human endeavor. Every August we marvel at the many applications of global positioning science, at real-world instances of hardware and software in the service of humankind and of Gaia itself. read more

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Establishing Orthometric Heights Using GNSS — Part 2

August 5, 2015By
Figure 2. NAD 83 (2011) Network Design for Stations EA0873 and EA0875. [Note: GNSS Vectors for GNSS projects GPS 1588 and GPS 2057 were provided by NGS].

GNSS-derived ellipsoid heights are the basis for GNSS-derived orthometric heights, so it makes sense to make these ellipsoid heights as close to error free as possible. This article will discuss guidelines for detecting, reducing andr eliminating error sources in ellipsoid heights. It will focus on guidelines for establishing accurate ellipsoid heights in a local geodetic network. (Part 2 of a series) read more

German Auto Consortium Set to Buy Nokia Map Unit

July 23, 2015By

The value of accurate maps is not lost on the automotive industry as it transitions from connected cars to automated vehicles. Three German automakers are rumored to be making a multibillion-dollar investment in Nokia’s HERE mapping division. If the deal goes through as expected by late July, Nokia, which purchased HERE (then called Navteq) for $8 billion in 2007, will have spurned... read more

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