OALib Journal期刊
ISSN: 2333-9721
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hilbert时频谱在大地电磁数据处理中的应用
Keywords: 大地电磁数据,hilbert时频谱,噪声识别,数据筛选,分段平稳
Abstract:
?文中研究了大地电磁信号的hilbert时频谱特征,并将其用于大地电磁信号的噪声识别、数据筛选和分段平稳分析中。通过内蒙古毛登区实测大地电磁数据处理,验证了方法的有效性。结果表明hilbert时频谱可准确地描述大地电磁数据的突变点、持续时段和频带能量分布,为大地电磁信号的噪声识别、数据筛选和分段平稳处理提供了条件;利用hilbert时频谱可挑选出信噪比高、能量强且分布均匀的信号段,并可做进一步的参数估计,提高了资料处理质量。
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[6] | 武安绪,吴培稚,兰从欣等.hilbert-huang变换与地震信号的时频分析.中l到地震,2005,21(2);207-216wu.an-xu,wupei-zhi,lancong-xinetal.hilbcrt-huangtransformandtime-frequencyanalysisofscis-miesignal.earthquakeresearchinchina,2005,21(2):207-216
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[7] | chantij,hasticlm.thewigner-villeanalysisofmagnetotelluriesignals.proceedingsgeologicalsocofaustralia,1990,25(4):89-90
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[8] | caijian-hua,tangjing-tian,hualxi-rui,gongyu-rong.ananalysismethodformagnctotclluricdatabasedonthehilbert-huangtransform[j].explorationgeophysics.2009,40(2):197-205
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[9] | 蔡剑华,汤井田.基于hilbert-huang变换的大地电磁信号谱估计方法[j].石油地球物理勘探.2010,45(5):762-767??浏览
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[10] | 林君,项葵葵,朱宝龙等.mt信号现场处理的实现技术研究.数据采集与处理,1997,12(1);52-55linjun,xiangkui-kui,zhubao-longetal.studyonimplementationofmtsignalprocessinginsitu.journalofdataacquisition&.processing,1997,12(1):52-55
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[11] | 汤井田,蔡剑华,任政勇.hilbert-huang变换与大地电磁信号的时频分析.中南大学学报(自然科学版),2009,10(5):1399-1405tangjing-tian,caijian-hua,renzheng-yong.hilbert-huangtransformandtimcfrcqucncyanalysisofmagnc-totelluriesignal.journalofcentralsouthuniversity(scienceandtechnology),2009,10(5):1399-1405
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[12] | chantij,hasticlm.time-frequencyanalysisofmagnctotclluricdata.geophysicaljournalinternational1992,111(2);399-413
|
[13] | huangne,shenz,longsretal.theempiricalmodedecompositionandthehilbertspectrumfornonlinearandnon-stationtimeseriesanalysis.procrsoclonda,1998,45(4):903-995
|
[14] | huangnf,wumc,lonsretal.aconfidencelimitfortheempiricalmodedecompositionandthehilbertspectralanalysis.procrsoclondon(sera),2003,45(9):2317-2345
|
[15] | 汤井田,化希瑞,曹哲民等.hilbert-huang变换与大地电磁噪声压制.地球物理学报,2008,51(2);603-610tangjing-hua,huaxi-rui,caozhe-mingetal.hil-bert-huangtransformationandnoisesuppressionofmagnctotclluricsoundingdata.chinesejgeophys-ics,2008,51(2):603-610
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