• GPS
Cruise missiles use GPS for navigation. As we have seen, GPS signals can be rather easily disrupted by an inexpensive jamming device. This would be a problem if cruise missiles didn’t have a backup, as Technology Review explains: terrain contour mapping or TERCOM, which uses preloaded contour maps and onboard radar. And if that doesn’t work? Dead reckoning. Via @gpstracklog.
The Map Room is a blog about maps by Jonathan Crowe. It covers everything from collecting to the latest in geospatial technology from a generalist’s perspective.
The Map Room ran from March 2003 to June 2011 and is presently inactive. Map-related links still get posted to Twitter and Facebook, and on Jonathan’s personal blog.
Between March 2003 and June 2011, I posted a total of 4,055 entries. You can explore them by visiting the archives index, or by choosing one of the monthly or category archives below:
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