From: Pete Heist (peteheist_at_yahoo.com)
Date: Tue Sep 28 2004 - 20:18:14 PDT
William Edmondson wrote:
> (http://www.cs.bham.ac.uk/~whe/SETIPaper.pdf)
That was an interesting paper William. Thanks for
sharing, and may your dish time leave you intrigued.
I have a couple of questions that are more about the
detection of pulsed signals in general than
specifically about the method described, so they're
open to anyone (omnidirectional, "weak intent"
questions, to make a strained parallel).
First I'd like to restate the proposal to verify that
I get the gist. Pulsars may be used to determine the
period and direction of possible pulsed signals as
follows:
P ----- E ----- ETI
P = Pulsar with period A
E = Earth
ETI = Transmitting ETI
We at Earth point our dishes opposite P and look for
signals pulsed with period A (perhaps on the hydrogen
line, why not). Did I get it?
My questions are:
- How much does knowing the period of a pulsed signal
practically help us to detect it? Verification I
understand.
- Even if we know the period, we don't know the phase.
What kind of challenge does that present in detection,
if any?
cheers,
Pete
_______________________________
Do you Yahoo!?
Declare Yourself - Register online to vote today!
http://vote.yahoo.com
This archive was generated by hypermail 2.1.6 : Tue Sep 28 2004 - 21:00:53 PDT