On Feb 28, 3:38�pm, Richard Owlett <rowl...@pcnetinc.com> asked:
What is DSP equivalent of Planck's constant?
How about 1 or 2 or 1/2pi or 1/4pi depending
on who you talk to, whether you measure
frequencies in radians/second or Hertz, and
how you define the time duration and bandwidth
of a signal. This is the minimum value of the
time-bandwidth product of a signal, and resembles
the uncertainty principle dx.dp >= h/4pi where h
is the (unnormalized) Planck's constant.
There was a discussion about this matter in
comp.dsp about six months ago.
--Dilip Sarwate
Reply by Richard Owlett●February 28, 20112011-02-28
My original title was going to be approximately
Murky region between "Fourier Series" and "Fourier Transform"
Think there should be a similarly simple title with "periodic" ;/
I suspect that deep down I see the FFT as just a convenient
method to calculate a 'Fourier Series' valid over a specified
time period.