Opinions

Antennas: The unsung heroes of the GNSS industry

February 22, 2016By

By Tracy Cozzens Managing Editor Antennas. When I was a kid, antennas meant the pair of rabbit ears sitting on top of the family TV set. We had to constantly adjust the angles to get the best reception, using aluminum foil to improve the signal. Wow, how things have changed. Today, consumer users of smartphones, Fitbits, smartwatches, tablets and a... read more

Out in Front: ION-ITM addresses ethics of autonomy

February 22, 2016By

The talk veered off into rather heady philosophical realms at the plenary session for ION’s International Technial Meeting in late January. Two of the three speakers had been encouraged to go well outside the box — and not to employ any equations in doing so — to address or envision the autonomously navigated future. We are caught in the act... read more

This article is tagged with , , , , and posted in From the Magazine, Opinions, UAV/UGV

UAV news round-up: Rules, birds and malicious drones

February 17, 2016By
falcon-drone

This month’s column recaps UAV news that you may or may not have picked up over the last few weeks. We start with stories related to the rules for operating drones in the U.S., then we’ll look at bird-like drones — used to scare away birds, new commercial UAV applications, and steps being taken to protect us from malicious use of drones... read more

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

All Betz are on: A satnav book review

February 10, 2016By
Betz_150x150_T

There is something for everyone interested in satnav in this wonderful book, regardless of their level of involvement or sophistication with PNT. This book is a treasure trove for PNT engineers and satnav experts but it’s readability is such that even if you are only slightly curious about how space based PNT works, you will find it an educational and enjoyable read. read more

This article is tagged with , , and posted in Defense, Opinions

Establishing orthometric heights using GNSS — Part 5

February 3, 2016By
Figure 9. Plot depicting the changes in adjusted heights due to constraining all published NAVD 88 leveling-derived orthometric heights except for station Phaniel (using GEOID12B) .

Basic procedures and tools for ensuring GNNS-derived orthometric heights meet the project’s desired accuracy
In the latest installment of our ongoing series, the focus switches from GNSS-derived ellipsoid heights to procedures and tools for ensuring GNNS-derived orthometric heights meet the project's desired accuracy. read more

GPS recruits: Uncle Sam wants your ideas!

January 27, 2016By
Uncle_Sam_(pointing_finger)

The GPS modernization funding picture cannot be called bright, yet neither can it be characterized as dim. While big money for big projects appears hard to come by, the U.S. government and military offer many smaller allocations to help fill the chinks in GPS armor. Such initiatives concern jamming, PNT solutions in GPS-denied environments and other conundrums. A run of... read more

This article is tagged with , , , and posted in Opinions

AUVSI to host massive trade show, works with US UAV regulators

January 20, 2016By
CES-uavs-2

The Association for Unmanned Vehicle Systems International (AUVSI) has renamed its major annual conference — XPONENTIAL — and the 2016 edition will be held in New Orleans at the Morial Convention Center on the west bank of the Mississippi, May 2–5. The huge convention center is hosting the event across two large halls, with more than 350,000 square feet of space for up... read more

This article is tagged with , , , , , and posted in OEM, Opinions

GPS aboard the world’s highest, fastest manned gliders

January 13, 2016By
NASA astronaut Scott Kelly floats aboard the International Space Station after the hatch opening of the Soyuz spacecraft Mar. 28, 2015. (Photo: NASA)

Featuring an exclusive interview with Astronaut Scott Kelly from aboard the International Space Station This month, we discuss sailplanes of all sorts and conduct a brief on-orbit interview with Astronaut Scott Kelly concerning his time piloting the space shuttle — actually a supersonic glider. We touch on the role GPS played in making it a safer rocket glider. Kelly also gives us... read more