Re: Imaginary Filters

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2 total messages Started by MICHAEL ALEXANDER MCKAY Sun, 10 Jan 1993 18:10

#2199

Author: MICHAEL ALEXANDER MCKAY
Date: Sun, 10 Jan 1993 18:10

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I've been unclear about the meaning of "the imaginary signal corresponding 
to a real signal."

Think of an input signal as the sum of the real components of many phasors, 
one phasor per harmonic in the signal.

Given only the input signal, I want to find the sum of the _imaginary_ 
components of the same phasors, using only time-domain techniques.

Re: Imaginary Filters

#2212

Author: Steve Salani
Date: Tue, 12 Jan 1993 02:35

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880840m@axe.acadiau.ca (MICHAEL ALEXANDER MCKAY) writes:

> Think of an input signal as the sum of the real components of many phasors, 
> one phasor per harmonic in the signal.
> 

Actually a real sinusoid is composed of two complex exponentials,
which are complex conjugates, therefore the sum is real.

--
Steve Salani (bbs.forte@tsoft.net)

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