PSD interpretation....

dbd <dbd@ieee.org> writes:
> [...]
> [1] Marple, S.L., Jr., &ldquo;A tutorial overview of modern spectral
> estimation&rdquo;,
> Acoustics, Speech, and Signal Processing, volume 4, 23-26,
> Page(s):2152 - 2157, May 1989
> available at:
> http://www.cactus.org/~benjamin/X/marple.pdf

Oh. So Steve's comment is about spectral estimators, while the
OP was discussing the analytical PSD? 
-- 
Randy Yates                      % "Ticket to the moon, flight leaves here today 
Digital Signal Labs              %  from Satellite 2"
mailto://yates@ieee.org          % 'Ticket To The Moon' 
http://www.digitalsignallabs.com % *Time*, Electric Light Orchestra

Randy Yates  <yates@ieee.org> wrote:

>Oh. So Steve's comment is about spectral estimators, while the
>OP was discussing the analytical PSD? 

At least the first half of your sentence is correct.  

Steve

spope33@speedymail.org (Steve Pope) writes:

> Randy Yates  <yates@ieee.org> wrote:
>
>>Oh. So Steve's comment is about spectral estimators, while the
>>OP was discussing the analytical PSD? 
>
> At least the first half of your sentence is correct.  

You really think, given the immaturity of the OP's original question, he
was referring to estimators? Wow.
-- 
Randy Yates                      % "Bird, on the wing,
Digital Signal Labs              %   goes floating by
mailto://yates@ieee.org          %   but there's a teardrop in his eye..."
http://www.digitalsignallabs.com % 'One Summer Dream', *Face The Music*, ELO

Randy Yates  <yates@ieee.org> wrote:

>spope33@speedymail.org (Steve Pope) writes:

>> Randy Yates  <yates@ieee.org> wrote:

>>>Oh. So Steve's comment is about spectral estimators, while the
>>>OP was discussing the analytical PSD? 
>>
>> At least the first half of your sentence is correct.  

>You really think, given the immaturity of the OP's original question, he
>was referring to estimators? Wow.

Actually, no I did not think that.  I was merely indulging in random 
thread drift.  


Steve

On May 5, 8:22&#4294967295;pm, Randy Yates <ya...@ieee.org> wrote:
> dbd <d...@ieee.org> writes:
> > [...]
>
> Oh. So Steve's comment is about spectral estimators, while the
> OP was discussing the analytical PSD?
> --
> Randy Yates

Randy
I make no claim to understand what the OP is intending to talk about
in this thread. And I was going with the drift.

fisico32
You might get better answers if you told us what you are reading so we
can better guess what you are intending to ask.


Dale B. Dalrymple

>>>Steve, were you having a senior moment? :) X(f)*X*(f) is always non-
>>>negative.
>>
>> Well you have to drill down a bit more.
>>
>> X(t) -> window -> sum(X(t)-(X(t-u)) -> window -> cosine transform ->
>> some non-positive-values. Depending on signal and window.

>[1] Marple, S.L., Jr., �A tutorial overview of modern spectral
>estimation�,
>Acoustics, Speech, and Signal Processing, volume 4, 23-26,
>Page(s):2152 - 2157, May 1989
>available at:
>http://www.cactus.org/~benjamin/X/marple.pdf

Thanks for the link. That looks like a nice read. 

dbd <dbd@ieee.org> writes:
> [...]
> [1] Marple, S.L., Jr., &ldquo;A tutorial overview of modern spectral
> estimation&rdquo;,
> Acoustics, Speech, and Signal Processing, volume 4, 23-26,
> Page(s):2152 - 2157, May 1989
> available at:
> http://www.cactus.org/~benjamin/X/marple.pdf

Dale, I'm with Alfred - thanks for the paper. It does look like a great
refresher/tutorial.
-- 
Randy Yates                      % "Remember the good old 1980's, when 
Digital Signal Labs              %  things were so uncomplicated?"
mailto://yates@ieee.org          % 'Ticket To The Moon' 
http://www.digitalsignallabs.com % *Time*, Electric Light Orchestra

"Randy Yates" <yates@ieee.org> wrote in message 
news:m3ljbxf9bb.fsf@galois.digitalsignallabs.com...
> dbd <dbd@ieee.org> writes:
>> [...]
>> [1] Marple, S.L., Jr., "A tutorial overview of modern spectral
>> estimation",
>> Acoustics, Speech, and Signal Processing, volume 4, 23-26,
>> Page(s):2152 - 2157, May 1989
>> available at:
>> http://www.cactus.org/~benjamin/X/marple.pdf
>
> Dale, I'm with Alfred - thanks for the paper. It does look like a great
> refresher/tutorial.
> -- 
> Randy Yates                      % "Remember the good old 1980's, when
> Digital Signal Labs              %  things were so uncomplicated?"
> mailto://yates@ieee.org          % 'Ticket To The Moon'
> http://www.digitalsignallabs.com % *Time*, Electric Light Orchestra
Yes, thank you.

   Best wishes,
   --Phil Martel