Articles by William Henning, PLS, Geodesist

In Real Time: Constraining to Passive Marks

September 28, 2011
In previous issues, we have briefly visited three of the “seven C’s” of NOAA’s National Geodetic Survey (NGS), as best methods for real-time (RT) GNSS positioning. We can now move to the fourth “C”--constraints--to examine whether we should constrain coordinate solutions to the passive control marks in the ground or to active control points, such as those from a real-time network (RTN), or both.
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In Real Time: Conditions Influencing RT Positioning

February 25, 2011
To date, we’ve briefly discussed two of the “seven C’s” of best methods for real-time (RT) GNSS positioning from NOAA’s NGS in previous issues of POB. We’ll now move to the third “C”--Conditions.
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In Real Time: Real-time GNSS Positioning Field Guide

October 28, 2010
Real-time GNSS (RT) technology is a fast, efficient positioning and navigation tool that can yield survey-grade coordinates used in a variety of applications. 
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HxGN Live

More than 3,500 attendees from more than 70 countries attended HxGN Live, the annual Hexagon AB user conference, at the MGM Grand Hotel & Casino in Las Vegas on June 3-6. About 450 keynotes and panel discussions were held, and several companies from around the world exhibited their geospatial products. Here are a few snapshots from the event.


POB July 2014

2014 July

In the July 2014 issue, POB explores the growth of photovoltaic (PV) installations in the United States across residential, commercial and utilities markets. Also, read how an innovative system ensures the vertical alignment of Gerald Desmond Bridge.

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