### Abstract

Original language | English (US) |
---|---|

Patent number | 9,423,490 |

State | Published - Dec 17 2015 |

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### Cite this

*9,423,490*).

**Spatial Localization of Intermittent Noise Sources by Acoustic Antennae.** / Lewalle, Jacques (Inventor).

Research output: Patent

*Spatial Localization of Intermittent Noise Sources by Acoustic Antennae*, Patent No. 9,423,490.

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TY - PAT

T1 - Spatial Localization of Intermittent Noise Sources by Acoustic Antennae

AU - Lewalle, Jacques

PY - 2015/12/17

Y1 - 2015/12/17

N2 - A noise source localization process that uses as few as four microphones in an antenna array. The process combines different averaging to the information from the various signals with non-linear (wavelet-based) filtering, cross-correlation and triangulation to more particularly locate a noise source relative to a target point. The process calculates a propagation time based on the distance from a target to each microphones, delays each of the signals according to the propagation time from the target, calculates a continuous wavelet transform for each of the signals to band-pass filter each of the signals according to a predetermined frequency of interest, determines the product of each pair of signals to produce correlation fringes, and locates the noise source based on the product of the pairs of signals.

AB - A noise source localization process that uses as few as four microphones in an antenna array. The process combines different averaging to the information from the various signals with non-linear (wavelet-based) filtering, cross-correlation and triangulation to more particularly locate a noise source relative to a target point. The process calculates a propagation time based on the distance from a target to each microphones, delays each of the signals according to the propagation time from the target, calculates a continuous wavelet transform for each of the signals to band-pass filter each of the signals according to a predetermined frequency of interest, determines the product of each pair of signals to produce correlation fringes, and locates the noise source based on the product of the pairs of signals.

M3 - Patent

M1 - 9,423,490

ER -