Allen Thomson (
Fri, 16 Aug 1996 14:49:33 -0700

   This is just a nit, but if there's going to be a NOSS FAQ, it's
worth pointing that the system is more likely to use the ELINT
technique called "time difference of arrival", TDOA, rather than 
true interferometry. Conceptually, TDOA and interferometry are
very similar, so this isn't a big deal.

   They may also use the frequency-domain version of TDOA, FDOA, which 
exploits doppler shifts somewhat in the way the COSPAS/SARSATs do.