Q. Lei, Zhensen Wu, Li-xin Guo, Junmei Fan, Senlin Geng
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引用次数: 1
The Big Data Processing of HF Sky-Wave Radar Sea Echo for Detection of Sea Moving Targets
Ahigh-frequency(HF)sky-waveradaralwaysmonitoringlargeareaofseasurface,fordetecting seasurfacemovingobjects,theremustbebigdatawaitingtobeprocessed.Asetofdataprocessing methodswereproposed,thesuccessfulimplementationofHFsky-waveradarontheseamoving targetdetection.BysettingtheHFsky-waveradarparameters,aftertheinitialdataprocessing,the gottenHFsky-waveradardataweresaved.ThenanewHFsky-waveradardataprocessingmethod wasprovided,thismethodwastheso-calledthree-stepdetectionmethod(TSTM)whichbasedon theconstantfalsealarmrate(CFAR)technique.ByusingTSTM,settingthedecisionthresholdG, withfalsealarmsbeingruledout,amovingtargetwasdetectedoutatlast,itsspeedwascalculated. TheresultsalsoprovedthatTSTMcouldeffectivelyreducetheseaclutter,andgreatlylessenthe echo-broadeninganddouble-imagecausedbyionospherecontamination. KEyWoRDS Big Data, Detection Threshold, HF Sky-Wave Radar, Range-Gate, Target Detection
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