Adaptive Stochastic Resonance Array Ultraweak Signal Proc

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1、ADAPTIVESTOCHASTICRESONANCE&TRANSPORTARRAYULTRAWEAKWIRELESSSIGNALPROCESSINGBabakVosooghzadehULTRAWEAKSIGNALPROCESSINGFOUNDATIONwww.ultra-weak-signal-processing-found.htmlplanet.comJune2010AbstractAdaptiveStochasticResonanceArray(ASRA)alongwithAdaptiveTranspo

2、rtArray(ATA)preamplifiermodulesareexploitedforambienttemperature(non-cryogenic)receiverfrontendrecoveryofUltraWeaknarrowbandorwidebandwirelesssignalswhicharesubjecttoco-channelinterference.TheASRAmethodusespassbandexternaladditiveorinjectingsignalsinaweighte

3、darrayframeworkforboostingtheultraweakwirelesssignalandtheATAmethodreliesoninstantaneousnoisepoweranalysisonaweightedarraytransportpaths.TheASRAmethodisespeciallyapplicableforcompactwirelessdevicessuchaswirelesshandsetsandsensors,wherethefacilitiesforconvent

4、ionalantennasorCryogenicsetupsarenotavailable,buttheATAmethodrequiresfurtherinvestigationbeforeactualimplementation.Thepreamplifiermethodsareinsensitivetothetransmissionprotocolandmodulationschemeandtheydonotrequireextrabandwidthfortheiroperation.Thestandard

5、signalprocessingconceptssuchasmutualinformationstochasticresonancequalitymeasures,gradientascentandstochasticannealing,Kalmanfilteringandstochasticcalculushavebeenusedforupdatingthearrayweightsortheinjectingsignalparameters.I-IntroductionThispresentationfocu

6、sesonAdaptiveStochasticResonanceArray(ASRA)andAdaptiveTransportArray(ATA)preamplifiersforthedetectionofultraweaksignals.Theultraweaksignalsaredefinedasdesiredsignalsthathavereceiverpowerlevelsbelowthenoiselevel(floor)andultraweaksignalpreamplifiersareemploye

7、dbeforetheLNAsatthewirelessreceiverinordertoboostthedesiredsignalpowertolevelsabovethenoisefloor.Section2providesabriefintroductionondifferentultraweakSignalhandlingmodules.Insection3,asimplemathematicsofultraweaksignalconditionispresented,withintheframework

8、oftraditionalmodulationformat.Section4isdevotedtoAdaptiveStochasticResonanceArray(ASRA)preamplifieranditcoversthearchitecture,resonancequalitymeasure,weightandinjectingsignalcontrollingparameter