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=== GNURadio XLating filter === | === GNURadio XLating filter === | ||
[[File:IQ_tutorial_QPSK_TX_RX_2.png|thumb|800px|Basic Tx/Rx using a Xlating filter at receiver]] | [[File:IQ_tutorial_QPSK_TX_RX_2.png|thumb|800px|Basic Tx/Rx using a Xlating filter at receiver]] | ||
GNURadio XLating filter | GNURadio XLating filter perform 3 actions | ||
* | * it shifts the spectrum in the frequency domain | ||
* | * it can filter the result with the specified filter | ||
* | * it can decimate the signal | ||
The Xlating filter is | The Xlating filter is usefull every time a signal spectrum is not centered, and/or when you need to select one signal in a spectrum where several channel are in use. | ||
Open [[Media:IQ_tutorial_QPSK_TX_RX_2.grc|IQ_tutorial_QPSK_TX_RX_2.grc]]. | Open [[Media:IQ_tutorial_QPSK_TX_RX_2.grc|IQ_tutorial_QPSK_TX_RX_2.grc]]. |