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Re: Does complex conjugate invert IQ ?


From: Martin Luelf
Subject: Re: Does complex conjugate invert IQ ?
Date: Mon, 13 Dec 2021 16:35:41 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.11.0

Dear Rachida,

in order to do that, use the "complex to float" and "float to complex" blocks and connect the re output to the im input and the im output to the re input.

Yours
Martin


On 13.12.21 16:31, Rachida SAROUI wrote:
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 <fabian@opencode.eu <mailto:fabian@opencode.eu>> 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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