The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 05, 2021

Filed:

Dec. 26, 2018
Applicant:

Aselsan Elektronik Sanayi VE Ticaret Anonim Sirketi, Ankara, TR;

Inventors:

Alper Bereketli, Ankara, TR;

Sinan Avsar, Ankara, TR;

Emir Dogan, Ankara, TR;

Mehmet Donus, Ankara, TR;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H04R 5/04 (2006.01); G06F 17/14 (2006.01); G10L 25/51 (2013.01); H04R 3/00 (2006.01);
U.S. Cl.
CPC ...
H04R 5/04 (2013.01); G06F 17/142 (2013.01); G10L 25/51 (2013.01); H04R 3/005 (2013.01);
Abstract

A method for acoustic detection of shooter location includes the following steps: receiving acoustic signals by a microphone array; detecting muzzle blast (MB) and shock wave (SW) signals through matched filter and cross correlation processes; transforming the detected MB and SW signals from time domain into frequency domain; beamforming the signals by means of the Delay and Sum method in frequency domain; estimating the direction of arrival (DOA) for the MB and SW signals by finding the azimuth and elevation which give the maximum power of the beamforming response; performing range estimation using the difference between the arrival time of the MB and SW signals together with the DOA estimations.


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