Ah.. missing is the qsb , to remove sections of the plot so these must be ground wave tests :- ) From: [email protected] Rik Strobbe Sent: Thursday, February 02, 2012 5:17 PM To: rsgb_lf_gr
Hello Graham, maybe that will be the next step. But let's start with something "easy". BTW: I did a test how many bits Opera can miss before decoding fails. Again, starting "easy" just by ommitting t
I use a slightly different method of generating noise in software, using the function A = SQR(-2 * LOG(RND)) * SIN(2. pi. RND) which gives a true Gaussian spread with RMS equal to 1 Doubt it makes an
I was going to make muttering noises about the S/N being dependent on the QRSS speed, then realised ..... duh.... it doesn't matter! When normalised, -28dB always corresponds to 6dB above the noise b
Hello Andy, I just started from SNR (in dB) = 10*LOG(Psignal/Pnoise) Or for SNR = 1 (0dB) ==> Psignal = Pnoise, thus RMSsignal = RMSnoise If the signal is a sine (most obvious) then RMS of the signal
Dear all, as mentioned some days ago I generated a whole series of Opera, WSPR and QRSS3 audio with a known SNR. For Opera and WSPR it was easy to determine the lowest SNR for a proper decode. But fo