Adaptive Demodulation Techniques for Next Generation Software ...

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Cumulants vs. SNRs
Cyclic Spectral AnalysisBasebandRaxx*Time varying autocorrelation1 T / 2( τ ) = lim→∞ ∫ R * ( t,tT − T / 2 xxTSaxx*( f )*{*x(t)x ( )}* ( t,t + τ ) = E t + τCyclic autocorrelationSpectrum correlation density+ τ ) e− j 2πat∫ ∞ a − j 2 τ= τπ fR ( ) e dτ−∞xxdtR xxDecision Templates•Input: IF•Features: cycle frequencies•Reference: Menguc, 2004Cycle FreqTheoretical spectrum correlation magnitudeGardner and Spooner 1992
Page 3 and 4: Modulation ClassifierFrom: http://w
Page 5 and 6: Modulation ClassificationSNR Estima
Page 7 and 8: 1 2 34 5 67 8 901 2 34 5 67 8 90SDR
Page 9 and 10: Feature Extraction: Amplitude,Diffe
Page 11: Mr k2 nd order1 st orderHigher-orde
Page 15 and 16: ALRT1M i∑p( i)jMi j=1( i)p j( rk)
Page 17 and 18: Research on Adaptive ModulationBase
Page 19 and 20: Deference Between Military andComme
Page 21 and 22: Adaptive Receiver - Ishii et al.‣
Page 23 and 24: Research of Menguc and Jondral (1)A
Page 25 and 26: Research of Simon and Divsalar (1)D
Page 27 and 28: Other Research Results on Modulatio
Page 29 and 30: Summary‣ Adaptive modulation is n

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