I and q channels: Difference between revisions

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|Meaning=(Abbreviation for in-phase and quadrature channels.) In [[Doppler radar]] and [[lidar]]  receivers, the [[quadrature]] video channels produced by [[coherent detection]] of the [[IF signal]].
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|Explanation=The [[energy]] in the two channels is in [[phase]] quadrature, and they may be considered together  to be a single [[complex signal]] with [[frequency]] components from -''F'' to +''F,'' where ''F'' is the  passband limit of the low-pass [[filter]] used in the demodulator.
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== I and Q channels ==
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<div class="definition"><div class="short_definition">(Abbreviation for in-phase and quadrature channels.) In [[Doppler radar]] and [[lidar]]  receivers, the [[quadrature]] video channels produced by [[coherent detection]] of the [[IF signal]].</div><br/> <div class="paragraph">The [[energy]] in the two channels is in [[phase]] quadrature, and they may be considered together  to be a single [[complex signal]] with [[frequency]] components from &minus;''F'' to +''F,'' where ''F'' is the  passband limit of the low-pass [[filter]] used in the demodulator.</div><br/> </div>
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Latest revision as of 09:22, 30 March 2024

(Abbreviation for in-phase and quadrature channels.) In Doppler radar and lidar receivers, the quadrature video channels produced by coherent detection of the IF signal.

The energy in the two channels is in phase quadrature, and they may be considered together to be a single complex signal with frequency components from -F to +F, where F is the passband limit of the low-pass filter used in the demodulator.

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