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PureSignal_final_selection

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ADAPTIVE BASEBAND PREDISTORTION<br />

APPLYING CORRECTION<br />

Signal In Signal Out FOR EACH iq_sample<br />

I,Q<br />

Correction<br />

Apply<br />

Correction<br />

Compare<br />

Signals &<br />

Calculate<br />

Correction<br />

I,Q<br />

I,Q<br />

I,Q<br />

mag = sqrt (i 2 + q 2 )<br />

g = gain_correct ( mag )<br />

φ = phase_correct ( mag )<br />

i_out = g * ( i * cos (φ) – q * sin (φ) )<br />

q_out = g * ( i * sin (φ) + q * cos (φ) )<br />

Multiply by the<br />

gain correction<br />

Rotate the phase<br />

©2014 Warren Pratt, NR0V 20

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