DSP

Indexing base sanity check - (was ... which [was ... which impliedref to ... ;/
Apologies to those who might think I'm stealing their thread. *CAVEAT LECTOR* Though I've *NEVER* supported myself by any trade normally associated with DSP, my avocations regularly deal with topics covered by this group. I've dealt with problems best expressed with a 0 base index. I've dealt with problems b... 27 Jun 2010 16:05

MATLAB indexing issue (was Re: Use of MATLAB fftshift)
On 27 Jun, 20:06, robert bristow-johnson <r...(a)audioimagination.com> wrote: On Jun 27, 8:09 am, Rune Allnor <all...(a)tele.ntnu.no> wrote: On 27 Jun, 07:56, eric.jacob...(a)ieee.org (Eric Jacobsen) wrote: IMHO the most plausible explanation for why this has never been addressed is that a consci... 7 Jul 2010 06:51

why fftshift() is useful.
On Jun 27, 11:41 am, Greg Heath <he...(a)alumni.brown.edu> wrote: On Jun 26, 9:54 pm, robert bristow-johnson <r...(a)audioimagination.com> wrote: On Jun 24, 5:48 pm, "fisico32" <marcoscipioni1(a)n_o_s_p_a_m.gmail.com> wrote: On Jun 24, 5:12=A0pm, "fisico32" <marcoscipioni1(a)n_o_s_p_a_m.gmai... 29 Jun 2010 07:26

S'ware for Complex Test Signals
I have been using the tone generator in CoolEdit Pro for designing continuous FM audio test signals (typically 10 minutes duration) and the mix-paste function to add AM, noise, etc. However, this method has a number of limitations. For example, the phase relationships of different channnels cannot be adjusted. ... 27 Jun 2010 20:29

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Call for Papers Reminder (extended): World Congress on Engineering and Computer Science WCECS 2010
Call for Papers Reminder (extended): World Congress on Engineering and Computer Science WCECS 2010 CFP: World Congress on Engineering and Computer Science WCECS 2010 Draft Paper Submission Deadline (extended): 16 July, 2010 Camera-Ready Papers Due & Registration Deadline: 30 July, 2010 WCECS 2010: San Francisco,... 26 Jun 2010 05:27

Reply stategy - was [Re: Use of MATLAB fftshift]
Richard wrote: I now decease from "rant" Heart attack? ... 25 Jun 2010 19:45

impulse response of a nonlinear filter
Hello forum, if a time-invariant (zero memory) nonlinear filter is fed with a delta impulse, it will output a certain output. That output will be the same no matter when the impulse is applied due to time invariance.... Superposition (convolution) is not valid for nonlinear system. Is there however some gen... 28 Jun 2010 15:02

Reply stategy - was [Re: Use of MATLAB fftshift]
On Jun 24, 12:56 am, Richard Owlett <rowl...(a)pcnetinc.com> wrote: Greg Heath wrote: *SNIP* Please do not send separate copies of the same post to different newsgroups. Just post one copy but include all group names, separated by commas, on the newsgroup line. Did you follow your own advi... 25 Jun 2010 12:04

nonzero phase spectrum from FFT of even function with zero imag part
>On Jun 24, 5:12=A0pm, "fisico32" <marcoscipioni1(a)n_o_s_p_a_m.gmail.com> wrote: Hello Forum, the fft of a rectangular, even, symmetric sequence show a nonzero real pa= rt and a zero imaginary part. All good so far. However the phase spectrum is nonzero: zero at some frequencies, pi at so= ... 25 Jun 2010 12:04