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:
Jul. 31, 2018

Filed:

Aug. 06, 2015
Applicant:

The United States of America As Represented BY the Secretary of the Navy, Washington, DC (US);

Inventors:

John Paul Schofield, III, Odon, IN (US);

Jack Eugene Fulton, Jr., Elnora, IN (US);

Terry Wayne Lockridge, Bloomington, IN (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S 7/02 (2006.01); G01S 13/93 (2006.01); G01S 7/292 (2006.01); G01S 13/52 (2006.01); G01S 13/28 (2006.01);
U.S. Cl.
CPC ...
G01S 7/023 (2013.01); G01S 13/931 (2013.01); G01S 7/292 (2013.01); G01S 13/282 (2013.01); G01S 13/288 (2013.01); G01S 13/52 (2013.01); G01S 2013/9342 (2013.01); G01S 2013/9346 (2013.01);
Abstract

Systems and methods are provided for the filtering of coherent noise signals. In an illustrative embodiment, a pulsed electronic signal receives varying phase shifts for each of its pulses prior to transmission. When coherent noise interferes with the transmitted signal, received signal receives a phase shift opposite of that applied prior to transmission such that the electronic signal is restored and the coherent noise becomes non-coherent. In another embodiment, width of each transmitted pulses can be varied prior to transmission, but a constant midpoint-to-midpoint time is maintained. After receiving a signal with coherent noise interference, the midpoints of the pulses are aligned causing the coherent noise to become non-coherent.


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