European Tribune - Comments - Monday Open Thread

Monday Open Thread | 64 comments (64 topical, editorial, 0 hidden)

Re: Writing this on the Thalys (4.00 / 2)

what matters is that it is of the order of the channel separation interval of gsm, in the worst case of a mast next to the rails. So when you pass the mast, you toggle from one extreme adjustment to the other in a split second, which an ordinary adaptive filter will not handle.

Of course, masts are not right next to the tracks, and you could use gps to guess about the doppler (using a geo db of all antennas next to the track). But in the end, satellite is the less unmanageable option...

Pierre

by Pierre on Tue Nov 24th, 2009 at 04:23:28 AM EST
[ Parent ]

Re: Writing this on the Thalys (none / 0)

Yes, I did not consider the fact that gsm is time sliced. Would it matter for leaky coax ( with the signal emitted by a line source rather than a point)?

by njh on Thu Nov 26th, 2009 at 05:11:47 PM EST
[ Parent ]

Monday Open Thread | 64 comments (64 topical, 0 editorial, 0 hidden)

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