Decompositionandenergydistributionofblastingvibrationsignal

basedonsecondgenerationwaveletpacket(SGWP)

LuLiang; LongYuan; XieQuan-min

doi:10.11883/1001-1455(2013)02-0140-08

Volume 33 Issue 2

Apr. 2014

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LuLiang, LongYuan, XieQuan-min, . Decompositionandenergydistributionofblastingvibrationsignalbasedonsecondgenerationwaveletpacket(SGWP)[J]. Explosion And Shock Waves, 2013, 33(2): 140-147. doi: 10.11883/1001-1455(2013)02-0140-08

Citation:

LuLiang, LongYuan, XieQuan-min, . Decompositionandenergydistributionofblastingvibrationsignal basedonsecondgenerationwaveletpacket(SGWP)[J]. Explosion And Shock Waves, 2013, 33(2): 140-147. doi: 10.11883/1001-1455(2013)02-0140-08

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Decompositionandenergydistributionofblastingvibrationsignal basedonsecondgenerationwaveletpacket(SGWP)

doi: 10.11883/1001-1455(2013)02-0140-08

1.
EngineeringInstituteofEngineeringCorps,UniversityofScience&
2.
TechnologyofPLA ,Nanjing210007,Jiangsu,China;

Funds:

NationalNaturalScienceFoundationofChina(51178460,51204071)

More Information

Corresponding author: LuLiang
Publish Date: 2013-03-25

Abstract

Abstract

Aimedtothepoormatchofthetraditionalwaveletpackettransform withthemeasured blastingvibrationsignalinthechoiceofwaveletbase,amethodwasproposedfortheconstructionof secondgenerationwaveletsbasedoninterpolationsubdivision.Andthefrequencyaliasresultedbydot interlacedsamplingwasovercomebyusinganalgorithm withfrequencyshift.Throughmulti-resolutiondecompositionofmeasuredsignals, energydistributionineveryfrequencybandwasobtained,by whichthedistributionfeaturesoftheblastingseismicsignalswereanalyzed.Analysisresultsshow thatthealgorithmfortheSGWPtransformcanreflecttheenergydistributionoftheblastingseismic signalsanditisaneffectiveapproachtoestimatingthestructuresafetyunderblastingvibrationconditions
- mechanicsofexplosion,
- secondgenerationwaveletpacket,
- interpolationsubdivision,
- blastingseismic,
- frequency-shift,
- energydistribution