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Wednesday, July 10 • 15:30 - 18:00
ARRANGEMENT OF ARRAY SENSORS FOR SOUND SOURCE IDENTIFICATION WITH COMPRESSIVE SENSING

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This work treats the theory of compressive sensing (CS) for the identification of sound source with attention on the sensor arrangement in the random array. As a lower Restricted Isometry Constant (RIC) is anticipated for satisfying the Restricted Isometry Property (RIP) that assures a stable recovery with CS, an objective function is established with the RIC averaging over the array's intended frequency range. Monte-Carlo based statistical method enables an estimation of RIC in the course of the minimization process, thereby proper sensor positions could be determined. The demonstration examines an optimal arrangement of 24 sensors for a given aperture, which is compared to two different types of random arrays. It is shown that the sen-sor configuration obtained by the proposed approach offers an improved performance as the frequency decreases and/or signal-to-noise ratio gets worse.


Wednesday July 10, 2019 15:30 - 18:00 EDT
St-Laurent 3, Board 03-B
  T10 Sig. Proc. & nonlin. mthds., SS01 Compressive sensing