Opinions

Auto Mining: A driverless Cat 793F CMD truck leaves an iron ore pit. (Photo: Caterpillar)

September 14, 2020

The expanded role of positioning through advancements in GNSS

By David B. Zilkoski

Photo: Ed Koziarski for GPS World

September 11, 2020

30 years of GNSS and the surveyor

Source: Roland Bauernfeind, Thomas Kraus, Dominik Dötterböck, Bernd Eissfeller, Erwin Loehnert, and Elmar Wittmann

September 9, 2020

How the Civil Air Patrol relies on GIS for civil defense

By William Tewelow, GISP

2013: NovAtel’s WAAS G-II reference receiver. (Photo: NovAtel)

September 9, 2020

Random recollections of GPS/GNSS

1990: UNB Professor Richard Langley and two graduate students use a GPS antenna (recognize it?) on a tripod to re-measure a historical baseline. (Photo: UNB Perspectives)

September 7, 2020

In the beginning, there was innovation

By Richard B. Langley

1976: The first military GPS five-channel receiver built in one of several programs that studied the feasibility of GPS. The receiver weighed more than 270 pounds and had seats for two operators. (Photo: Rockwell Collins/Smithsonian)

September 3, 2020

Our insatiable appetite for GPS

By Matteo Luccio

Incorrect GIS parcels information. (Image: Tim Burch)

September 2, 2020

The surveyor and the cadastre: Why can’t we be friends?

Image: peshkov/iStock/Getty Images Plus/Getty Images

August 21, 2020

Connected-car designs must prioritize security

By Alexander Meisel

The Global Hawk. (Photo: NASA)

August 19, 2020

1960s CIA drone-bird project a predecessor to NASA Global Hawk

August 18, 2020

No silver bullet for US PNT: Many sources needed

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