archive: Re: SETI Some Questions

Re: SETI Some Questions

Dr. H. Paul Shuch ( (no email) )
Thu, 03 Sep 1998 06:39:16 -0700

On Thu, 03 Sep 1998 08:04:25 Peter J. Thompson wrote:

> Am I correct in assuming that with the existence of arbitrarilly fast A/D conversion coupled with arbitrarilly fast DSP engines that there is intrinsic benefit in doing the 'signal processing' in software. Specifically for SETI, I guess this would allow real-time processing of 'wide' blocks of spectrum with the appropriate level of granularity (bin-width or whatever) and processing algorithm selection. I was wondering how far away we are from doing something like this.

Not only are you correct, Pete, buat's exactly what we are doing! The sound-blaster cards are being used only as analog-to-digital converters, to get the (250 Hz to 22 kHz) IF into the computer bus. All the DSP is indeed being done in software.

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