This is because if the swap is S(a+bi) = b+ai and the conjugate is C(a+bi) = a-bi, then S(z) = iC(z), so we see that the only difference between both operations is a 90º phase rotation.
Both of these operations accomplish flipping the frequency axis, which is probably the main reason one would use them.
Best, Daniel. El 13/12/21 a las 17:14, Albin Stigö escribió:
This might be of interest.https://www.dsprelated.com/showarticle/51.php <https://www.dsprelated.com/showarticle/51.php>--AlbinOn Mon, Dec 13, 2021, 16:45 Cyrille Morin <[email protected] <mailto:[email protected]>> wrote:Hi, You could use a "Complex to Float" to separate the I and Q components, followed by a "Float to Complex", inverting the re and im inputs. Le 13/12/2021 à 16:31, Rachida SAROUI a écrit :Thank you for responding, but what I meant by invert is swapping the I and Q components of the signal. Le lun. 13 déc. 2021 à 16:25, Fabian Schwartau <[email protected] <mailto:[email protected]>> a écrit : Complex conjugate only inverts the imaginary (Q) part of the signal. If you want to invert both, just multiply with -1. Am 13.12.21 um 16:22 schrieb Rachida SAROUI: > Hi everyone, > > I need to invert the I and Q of a complex signal. Does the block complex > conjugate do the job? > > Thank you >
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