02075nam 2200601Ia 450 991069726200332120230902161847.0(CKB)5470000002386301(OCoLC)646195349(EXLCZ)99547000000238630120100707d1994 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierPassive fetal heart rate monitoring apparatus and method with enhanced fetal heart beat discrimination[electronic resource] /inventors, Stephen A. Zahorian, David L. Livingston, Robert A. Pretlow III[Redacted ed.][Washington, DC] :[National Aeronautics and Space Administration],[1994]1 online resource illustrationsNASA case ;no. LAR 15129-1Title from PDF title screen (NASA, viewed July 6, 2010).NASA case ;LAR-15129-1.FetusesnasatHeart ratenasatMonitorsnasatNonlinear filtersnasatSignal detectionnasatSignal detectorsnasatSignal processingnasatHeart beatSignal detectionSignal processingFetuses.Heart rate.Monitors.Nonlinear filters.Signal detection.Signal detectors.Signal processing.Heart beat.Signal detection.Signal processing.Zahorian Stephen Andrew1399495Livingston David L1399496Pretlow Robert A1399497United States.National Aeronautics and Space Administration.GPOGPOBOOK9910697262003321Passive fetal heart rate monitoring apparatus and method with enhanced fetal heart beat discrimination3464760UNINA