On Thu, 15 Mar 2012 13:50:08 +0000 shali...@gmail.com wrote: > Poul-Henning, > > Do you need 16 bits or can you get by with a 12 bit ADC? > > Have you considered using an FPGA for signal processing? It seems you need a > fairly serious CPU to handle that much data. >
I think Poul-Henning is refering to his AducLoran receiver, which used a 1Msps ADC . I dont remember what he exactly does with the signal, but IIRC he uses a 40MHz uC which leaves him with 40 Cycles per sample, which is quite a lot if you only do just some math calculation to detect the start of a second... And unlike with the FPGA, it does not take more time to process 8bit or 24 bit samples as the uC works with 32bit numbers anyways. Attila Kinali  http://phk.freebsd.dk/AducLoran/ -- The trouble with you, Shev, is you don't say anything until you've saved up a whole truckload of damned heavy brick arguments and then you dump them all out and never look at the bleeding body mangled beneath the heap -- Tirin, The Dispossessed, U. Le Guin _______________________________________________ time-nuts mailing list -- email@example.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.