A study on the random array generation method for moving sound source identification

(整期优先)网络出版时间:2015-03-13
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Basedontheproblemthatthegeneratingmethodofrandomarraystructureisinefficient,amethodisproposedtogeneratetherandomtargetarraysbyusingcoaxialcirculararrayinthepolarcoordinatesinthepremisethatthearrayangularresolutionofsourceidentificationisguaranteed.Accordingtotheprincipleofmovingsoundsourceidentification,thisworkdeducesthebasicnon-equidistancecoaxialcircularrings’radius,andgeneratestargetrandomarrayswhichweresuitableformovingsoundsourceidentificationthrougharraypartitioning,conditionfilteringinthepolarcoordinatesandsimulationevaluation.Finally,numericalsimulationandmovingcarsoundsourceidentificationtesthavebeendone.Theanalyticalresultsshowthatusingthismethodtogeneraterandomarrayiseffective.Comparedwiththetraditionalregulararrays,thetargetrandomarrayhasmoreaccuratemovingsoundsourceidentificationperformance.