Tag Archives: satellites

Capturing Today’s (and Tomorrow’s) Constellations

Access to all GNSS constellations provides better data, better results Enhancements made to improve the handling of satellite systems (also called constellations) and the increasing number of signals produced by these systems provide a tangible benefit to any solution that requires precise positioning.  Depending on the time of day and the geographical location, some of...

Let’s Get Something Straight

In my last Dis-Located column I wrote about the historic, economic, and unusual impact of the Potomac River dividing Maryland and Virginia, saying no other state border impacted either side quite like it. While that is true, several readers pointed out that there are other oddities among state borders created by surveyors or surveying mistakes....

xyHt Weekly News Links 7/17/2020

*Click here to visit xyHt’s Virtual Trade Show* Congress Moves Against FCC’s Ligado Decision Bad Elf Flex™ Adopts the Hemisphere Phantom™ Module Honeywell Refines Navigation Revealing the World from Satellites Common Ground Alliance Launches New Expo    

xyHt Magazine September 2017 Issue

To view this issue as it appears in full in print, click the cover: Articles from this issue include: Go for the Beer! Recording, Registration, and Cadastres: Comparing systems for real-property management in the Netherlands and the United States. GPR Revisited: Arrays of multiple sensors and advances in processing breathe new life into the field...

GNSS

Above: The third satellite in IRNSS being tested before its successful launch. What Did Not Happen and Increases, Improvements, Innovations Sometimes the most telling precursors of the future are things that did not happen. By all accounts, 2014 should be remembered a horrible, terrible, very bad GNSS year with botched launches, toxic broadcast ephemerides, near peak...

Satellite Imagery’s Impact

Above: The highest resolution of commercial satellite imagery is still more than an order of magnitude lower than the highest resolution attainable from aerial platforms. Keystone Aerial Surveys, Inc. developed this digital surface model from 1.75 cm digital imagery taken with a low-altitude flight. The resolution is sufficiently high to enable its use for mapping...