archiv~1: Re: SETI Linux signal analysis

Re: SETI Linux signal analysis

David Woolley ( david@djwhome.demon.co.uk )
Wed, 25 Nov 1998 08:41:07 +0000 (GMT)

> >
> > Well, for one thing, I think an interface for XFree86 goes
> > without saying.. But I'm saying it anyway. :-)
>
> Say on, I want to sit and watch the waterfall go by as much as the
> next guy. By the way, do waterfall displays typically scroll up or
> down?

Waterfall displays are very expensive, and for a SETI station to be
really useful, it should be operating 24x7 and rarely being watched.
An X waterfall is even worse.

Specgram2, with some small changes to remove floating point operations,
spends the majority of its time maintaining the display, even when
using the relatively efficient SVGA library interface. That time could
be better spent in more sophisticated searching algorithms.