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.
Patent No.:
Date of Patent:
Oct. 10, 2017
Filed:
Jul. 28, 2015
Applicant:
Bae Systems Plc, London, GB;
Inventors:
David John Shepard, Essex, GB;
John Michael Wood, Essex, GB;
Assignee:
BAE Systems plc, , GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 13/53 (2006.01); G01S 13/536 (2006.01); G01S 7/41 (2006.01); G01S 13/02 (2006.01);
U.S. Cl.
CPC ...
G01S 13/536 (2013.01); G01S 7/415 (2013.01); G01S 2013/0245 (2013.01);
Abstract
A method for suppressing the Jet Engine Modulation (JEM) clutter signal returns from compressor blades () in data sampled by a system for Foreign Object Debris (FOD) detection in the air intake () of a turbine assembly, the method comprising the steps of: (a) identifying in the data the start sample position and length in samples of a single complete shaft rotation; and (b) subtracting from a current rotation dataset the samples from a comparison rotation dataset corresponding to another complete single shaft rotation.