Wednesday, February 16, 2011

GPS Vulnerabilities


At the Clay Maitland blog, Michael Grey has a good post - The dangers of GPS reliance about the vulnerabilities of GPS.  He relates the story of a test of a GPS jammer and says:



The result was pandemonium, with virtually every system aboard this exceptionally well-equipped (and well-prepared) ship gave up the ghost in a simultaneous burst of loud alarms. Only the vessel’s enhanced Loran was unaffected by the interruption.

 eLORAN would have been a good back-up for GPS but it seems it  is a dead issue in the U.S., the towers are being destroyed.   There is one method even more robust then a GPS/eLORAN system however - dead-reckoning,  at least on paper charts that is.

K.C.

 Here is an article from BBC News about GPS vulnerabilities  to solar activity -
Sat-nav devices face big errors as solar activity rises

1 comment:

Will said...

There is one method even more robust then a GPS/eLORAN system however, dead-reckoning,, at least on paper charts that is

Fix this sentence.