发明名称 |
Acoustic wide area air surveillance system |
摘要 |
A method and apparatus for detecting an aircraft. The method is provided for wide area tracking of aircraft. An acoustic emission of the aircraft is detected from a plurality of locations. A position of the aircraft at a set of times is estimated by comparing a set of harmonically related Doppler shifted frequencies for the acoustic emission to an expected zero Doppler shifted frequency of the aircraft to form an estimated position. The position of the aircraft and a heading of the aircraft are tracked using the estimated position. The aircraft type is classified based on the corresponding set of zero Doppler frequencies at each acoustic sensor.
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申请公布号 |
US7872948(B2) |
申请公布日期 |
2011.01.18 |
申请号 |
US20080102272 |
申请日期 |
2008.04.14 |
申请人 |
THE BOEING COMPANY |
发明人 |
DAVIS HENRY H.;BALMFORTH KEVIN DALE;NIELSEN RICHARD OVE |
分类号 |
G01S3/802;G01S3/808;G01S5/22;G01S11/14 |
主分类号 |
G01S3/802 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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