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Reino Talarmo (@ReinoT)

Retired telecommunication engineer M.Sc.. Radio and electrical designer and telecommunications standards group leader for professional private radio systems. Nowadays more a radioamateur.

Re: Acoustic Modems in Matlab

Reply posted 2 months ago (04/05/2024)
Hi,As I don't know the details of your modem modulation and speed, I can only give general level comments. How you have tried to teach your adaptive equalizer? Have...

Re: Acoustic Modems in Matlab

Reply posted 2 months ago (04/04/2024)
Hi weetabixhjarry,If you tried your over the air modem in a room, then the obvious reason for the failure is that sound propagation in rooms is multipath. A single...

Re: BPSK BW Requirement

Reply posted 9 months ago (09/06/2023)
The requirement was to determine 99% bandwidth from a measurement. The 99% bandwidth is one of the definitions that is used to define how much a signal uses bandwidth...

Re: BPSK BW Requirement

Reply posted 9 months ago (09/01/2023)
I forgot to point you a reference to the issue. Rec. ITU-R SM.853-1.https://www.itu.int/dms_pubrec/itu-r/rec/sm/R-REC-...

Re: BPSK BW Requirement

Reply posted 9 months ago (09/01/2023)
I assume that the spectrum you got is a power spectrum. You need to integrate it as function of frequency using a suitable integration formula to prepare a cumulative...

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