RE: [Discuss-gnuradio] signals/atsc question

[Robert McGwier]

Thanks, I am looking forward to forward motion at last.
I am very interested in the VHF-Microwave front end.  I have
active antennas, and can construct the filters but I need some
details on the front end, i.e., specs.

Bob



-----Original Message-----
From: Matt Ettus [mailto:address@hidden
Sent: Friday, March 18, 2005 2:34 AM
To: Robert McGwier
Cc: address@hidden Org
Subject: RE: [Discuss-gnuradio] signals/atsc question


Quoting Robert McGwier <address@hidden>:

> I would like to do N, where N is larger than 4, correlators on the FPGA
> in order to do code acquisition for code division multiplexing.  I would
> also
> like to do beam steering experiments on four channels.  All involve
> multiplications and the lower the latency, the better.
>
> Then the question becomes how MUCH ram is burned in this scheme?  Is it
> onerous?  We are not anywhere near the fill up point in the Cyclone yet
> are we? Can we get a link to this paper instead of just an announcement?


Everything you mention should be doable.  Another thing to keep in mind is
that
you can rip out various parts of what is currently in there if you don't
need
them.  For example, a receive-only application can save quite a bit of space
by
removing the TX stuff.  Also, if you are doing a correlator, you may want to
integrate the carrier tracking with it.  In that case, you would probably
take
out the DDCs that are in there now.

Matt