PureSignal_final_selection
PureSignal_final_selection
PureSignal_final_selection
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ADAPTIVE BASEBAND PREDISTORTION<br />
Basic Concept<br />
Generate<br />
Signal<br />
I,Q<br />
Apply<br />
Correction<br />
I,Q<br />
DUC<br />
DAC<br />
RF<br />
RF<br />
Correction<br />
Compare<br />
Signals &<br />
Calculate<br />
Correction<br />
I,Q<br />
DDC<br />
ADC<br />
Amplifier<br />
RF<br />
• Apply Correction to the out-bound signal<br />
• Calculate Correction by Comparing the Input & Output of the Amplifier<br />
• BASEBAND – I,Q Before Up-Conversion / I,Q After Down-Conversion<br />
• ADAPTIVE – Repeat the process to Adapt to Changing Conditions<br />
©2014 Warren Pratt, NR0V 16
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