-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Looking at the existing DBPSK detector, it seems that the current software doesn't do any sort of transmission detection where demodulation only happens if there's an increase of energy in the air.
It seems you could implement this easily with a block that keeps a sliding average of the energy and only forwards those samples that are above the noise floor. Even with schemes like BPSK that experience great amplitude fluctuation, the energy never drops anywhere near 0. Comments on problems with doing this that I don't foresee? Advice on how to decide between noise and signal? I imagine that doing this poorly will lead to pulses with SNR less than, say, +3 to +10 db being dropped which would be pretty crappy. Thanks! Dan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.6 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGR7awy9GYuuMoUJ4RAkAqAJ9ToKQB+3+TdkBHISMHxxjE8YK2xgCdEHjJ B80epm9BiUZSQ37hWqYtDyg= =c1a5 -----END PGP SIGNATURE----- _______________________________________________ Discuss-gnuradio mailing list Discuss-gnuradio@gnu.org http://lists.gnu.org/mailman/listinfo/discuss-gnuradio