Communications: directive radio wave systems and devices (e.g. – Directive – Utilizing correlation techniques
Patent
1989-06-13
1990-02-06
Tarcza, Thomas H.
Communications: directive radio wave systems and devices (e.g.,
Directive
Utilizing correlation techniques
G01S 316
Patent
active
H00007404
ABSTRACT:
Interference signal cancelling is provided by a multiplexed interference celling system that utilizes a primary high gain antenna and an auxiliary antenna pair including a low gain notch antenna in conjunction with a low gain omnidirectional antenna. The output of the two low gain auxiliary antennas are subtracted from each other to provide an output that is substantially free of all input signals except for the interfering signal received in the narrow notch of the notch antenna. This signal is then subtracted from the composite output signal of the primary antenna. One of these auxiliary antenna pairs is employed for each separate jamming signal source to be cancelled, thus enabling each jamming signal to be orthogonally isolated, whereupon its magnitude and phase is then adjusted to be equal to and 180.degree. out of phase with the same component contained in the composite signal from the primary antenna. Each interfering signal is then separately subtracted from the composite signal, leaving only the desired signal.
Tarcza Thomas H.
The United States of America as represented by the Secretary of
Wallace Linda J.
Zelenka Michael J.
LandOfFree
Antenna sidelobe interference canceller does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Antenna sidelobe interference canceller, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Antenna sidelobe interference canceller will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-434313