The Big Data Processing of HF Sky-Wave Radar Sea Echo for Detection of Sea Moving Targets

Int. J. Inf. Technol. Web Eng. Pub Date : 2017-10-01 DOI:10.4018/IJITWE.2017100104

Q. Lei, Zhensen Wu, Li-xin Guo, Junmei Fan, Senlin Geng

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引用次数: 1

Abstract

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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用于海上运动目标探测的高频天波雷达海回波大数据处理

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)techniqueByusingTSTM，settingthedecisionthresholdG, withfalsealarmsbeingruledout，amovingtargetwasdetectedoutatlast，itsspeedwascalculated。TheresultsalsoprovedthatTSTMcouldeffectivelyreducetheseaclutter，andgreatlylessenthe echo-broadeninganddouble-imagecausedbyionospherecontamination。关键词:大数据，探测阈值，高频天波雷达，距离门，目标探测

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Int. J. Inf. Technol. Web Eng.

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