Telecommunications – Receiver or analog modulated signal frequency converter – Noise or interference elimination
Reexamination Certificate
1998-05-27
2001-01-09
Hunter, Daniel S. (Department: 2684)
Telecommunications
Receiver or analog modulated signal frequency converter
Noise or interference elimination
Reexamination Certificate
active
06173167
ABSTRACT:
BACKGROUND OF INVENTION
1. Field of the Invention
This invention relates generally to the suppression of interference amongst communication signals. In greater particularity, the invention relates to an interference suppression processor, which itself includes multiple processors, which performs against any interferer as well as, or better than, the best of the processors it includes.
2. Description of Related Art
Major sources of radio interference are non-Gaussian in structure. A variety of processors have been developed to cancel different types of non-Gaussian interference. Among these processors are ones which process baseband received signal sample amplitudes and ones which process baseband received signal sample phases. These processors have been developed/optimized to best cancel specific kinds of interference.
Processors of amplitudes and processors of phase best cancel specific kinds of interference. As a result, no single processor performs best for all kinds of interferers. There is thus a need for a single processor that can cancel a wide range of interference as well as any individual processor cancels specific kinds of interference.
SUMMARY OF THE INVENTION
Processors which process baseband received signal sample amplitudes and ones which process baseband received sample phases are combined in a single processor which cancels a greater variety of interference than any of the individual processors incorporated into it.
The invention to be described can be used to combine a wide-range of processors, for example, processors which filter baseband in-phase/quadrature sample amplitudes and phases. This invention is a general processor, which itself includes multiple processors, which performs against any interferer as well as, or better than, the best of the processors it includes. The invention assesses the individual processor outputs and weights these so that those processors with the best interference suppressed outputs are utilized to form the interference suppressed output of the invention. The remaining individual processors are inactivated so that their outputs do not contribute to the output of the invention.
OBJECTS OF THE INVENTION
It is an object of this invention to provide an improved interference suppression processor.
Another object of this invention is to provide an interference suppression processor that is capable of performing against a wide range of interferers.
Other objects, advantages and new features of this invention will become apparent from the following detailed description of the invention when considered in conjunction with the accompanying drawings.
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Bond James W.
Schlosser Thomas W.
Velez William
Fendelman Harvey
Hunter Daniel S.
Kagan Michael A.
Lipovsky Peter A.
The United States of America as represented by the Secretary of
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