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YU Huabing, LIU Hong, PAN Yue, HUI Junying. Study on directivity sharpening of small sensor[J]. ACTA ACUSTICA, 2000, 25(4): 319-322. DOI: 10.15949/j.cnki.0371-0025.2000.04.006
Citation: YU Huabing, LIU Hong, PAN Yue, HUI Junying. Study on directivity sharpening of small sensor[J]. ACTA ACUSTICA, 2000, 25(4): 319-322. DOI: 10.15949/j.cnki.0371-0025.2000.04.006
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Study on directivity sharpening of small sensor

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    • Abstract
  • Is it possible that an acoustic sensor which size is only 10 cm can form a narrow directivity with a constantbeam of 20 degree?Based on the combined sensort a narrow directivity has been formed in lowfrequency band fromseveral Hertz to several kiloHertz by using simple adaptive algorithm and the results of theoretical simulation,laboratoryexperiment and lake experiment are also shown in this paper.
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