Re: How does digital TV broadcast prevent ghosting effects?
- From: Jan Panteltje <pNaonStpealmtje@xxxxxxxxx>
- Date: Wed, 21 Nov 2007 19:48:13 GMT
On a sunny day (Wed, 21 Nov 2007 10:11:28 -0800 (PST)) it happened MRW
<mr.whatever@xxxxxxxxx> wrote in
<caa438d0-efc3-495c-926e-e44ffe1b3293@xxxxxxxxxxxxxxxxxxxxxxxxxxx>:
Good morning world!
I've been reading about the new digital TV standards (8-VSB, DVB-T,
ISDB-T) and they all mention that the standards are more robust
compared to the analog standard. For example, all state that
practically ghosting effects are eliminated with DVB-T and ISDB-T
providing more robust response to mulitpath effects than 8-VSB.
How do these standards eliminate ghosting effects?
Well in essence because digital will grab onto the strongest signal.
Weaker interfering signals produce no picture.
Some modulation systems use energy from each received path.
.
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