Re: Update on LIGO.

On a sunny day (Thu, 17 Jan 2008 17:06:39 -0600) it happened "local host"
<Dorkus@xxxxxxxxxxxx> wrote in <fmon13$oom$1@xxxxxxxxxxxxxxxxxxxxxxxxx>:

http://ccrma.stanford.edu/~jos/sasp/Processing_Gain.html

Coherent integration increases SNR, helps you pull
signals out that are buried in noise.

Yes, and it says this:
<quote>
Each halving of the low-pass cut-off frequency adds another 3 dB to the
SNR. Since the signal is a dc component (zero bandwidth), this process can
be repeated indefinitely to achieve any desired SNR.

WRONG. google "Allen Variance" SNR is limited.

Yep. sample accuracy, and a whole lot of other stuff Wormley does not
know, because he _never_ designed a receiver, a sampling system, or any electronics
recently for that matter, all limit SNR quality.
Only a total know-nothing can claim to get any signal from noise.

Hey, I may seem pretty arrogant claiming LIGO is crap, crap science, bad physics,
and generally crap, not to forget crap, but really, I have predicted their null
now as long as I have been posting to this group.

While the Wormley has provided nothing but links with no hands on experience
and no real understanding.
He's a parrot.
Like all Einstein-reciters.

.

Relevant Pages

  • Re: Update on LIGO.
    ... |>>> GPS Satellite signals are buried in the noise! ... |>Coherent integration increases SNR, helps you pull ... These waves out weigh gravity waves and will swamp LIGO ...
    (sci.physics)
  • Re: Update on LIGO.
    ... |>>> GPS Satellite signals are buried in the noise! ... |>Coherent integration increases SNR, helps you pull ... These waves out weigh gravity waves and will swamp LIGO ...
    (sci.physics)
  • Re: OTA ATSC Noise Problem
    ... With digital modulation systems what is commonly refered to as SNR is ... becuase digital modulation typically apears to be noise (psudeo-random ... You'll see 8 lines showing the vsb signals. ...
    (alt.tv.tech.hdtv)
  • Re: Calculation of snr
    ... the standard deviation as the equivalent to RMS noise, is the form SNR ... To estimate the SNR in dB you must use signals which can be converted to ... What you really need is the raw data from the sensor. ...
    (rec.photo.digital)
  • Re: converting samples to frequencies
    ... practical situation and then seeing all sorts of nearly OT smart ... about infinite SNR cases, etc. ... clarifications regarding joint time-frequency resolution needs ... In asking the question I intend to *exclude* noiseless signals, ...
    (comp.dsp)
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