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:
Jan. 17, 2012
Filed:
Aug. 20, 2008
Richard Desalvo, Satellite Beach, FL (US);
Charles Middleton, Rockledge, FL (US);
Michael Borbath, Indialantic, FL (US);
Jeffrey A. Wyatt, Palm Bay, FL (US);
Richard DeSalvo, Satellite Beach, FL (US);
Charles Middleton, Rockledge, FL (US);
Michael Borbath, Indialantic, FL (US);
Jeffrey A. Wyatt, Palm Bay, FL (US);
Harris Corporation, Melbourne, FL (US);
Abstract
A method is provided for co-site interference mitigation in an RF communication system. Spectral nulls created in an optical domain may be used to mitigate interfering signals in an RF signal. The method includes: receiving an RF input signal via an antenna; generating two optical signals that are each modulated using the RF signal; creating a phase delay in one of the two optical signals that corresponds with a spectral null at a frequency of an interfering signal; converting the two optical signals into two corresponding electrical signals and combining the two electrical signals to create spectral nulls via interference between the two signals and form a mitigated output signal. In this way, the spectral null offsets the amplitude of the interfering signal, thereby reducing the signal strength of the interfering signal.