Opinions

UAV solutions to be showcased at Intergeo

July 19, 2017By

Legal issues, international market analyses and best practices take center stage at the Interaerial Solutions Expo (IASEXPO). Plus: Drone use in surveillance. read more

Communication matters with spatial data

July 12, 2017By

International Cartographic Conference much more than just cartography I’ve always been a strong proponent of good cartography since my early days in geographic information systems (GIS) when I saw countless examples of very poor GIS map products. Regrettably, many early practitioners of GIS understood the software but lacked an appreciation and understanding of the good cartographic principals that are absolutely necessary... read more

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Here there be dragons: GIS explores the unknown

July 12, 2017By

Here there be dragons. That phrase (or a variation of it) was used by early mapmakers to designate the unknown — and alert sailors to the danger of traveling into uncharted waters. I’ve always admired explorers who dared to push the boundaries of the known world. We’ve moved from the Age of Exploration to the Age of Information, but exploration continues... read more

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GPS accuracy not ‘nearly perfect’

July 10, 2017By

When someone utters the words “I’m nearly perfect,” get on your toes. Such self-appraisal usually masks something. It could be insecurity, denial, ignorance or simply fear. At the very least, some level of illusion, if not delusion, is involved. With that precept in mind, let’s examine a June 16 press release from the U.S. Air Force, under the headline “New... read more

Accuracy, precision and boundary retracement in surveying

July 5, 2017By

Technology has improved the scientific community’s ability to measure in many ways that our ancestors would have trouble believing. From obtaining measurements across galaxies down to the tiniest of atom splitting, our ability to measure is exceedingly robust. The land surveying profession has benefitted from this ongoing technological revolution in many ways (GPS World March 2017) and has advanced our... read more

Double trouble: GNSS over-reliance and its costs

June 28, 2017By

This month’s column deals with two troublesome topics: the U.S. government’s over-reliance on GPS, and the potential costs of GPS disruption toward which such a policy may be leading us. First things first. When someone utters the words “I’m nearly perfect,” get on your toes. Such self-appraisal usually masks something. It could be insecurity, denial, ignorance or simply fear. At... read more

UAV update: GPS jamming, tethered drones, NASA UTM and space planes

June 21, 2017By

GPS World columnist Tony Murfin provides an overview of the hazards of — and at least one remedy for — GPS jamming, along with an update on the rise of tethered drones, UAV airspace traffic management, beyond-visual-line-of-sight drone operations and more. read more

This article is tagged with and posted in OEM, Opinions, UAV/UGV

Anti-jam systems: Which one works for you?

June 14, 2017By

In my April column, I introduced the basic concepts behind GPS anti-jam technology, along with a bit of history around its evolution. I knew this was a popular topic, but I didn’t anticipate the enormous amount of positive correspondence I’ve received since, including many inquiries about where to buy this technology and who is entitled to have it. So this... read more