Pulse or digital communications – Receivers – Interference or noise reduction
Reexamination Certificate
2011-03-15
2011-03-15
Torres, Juan A (Department: 2611)
Pulse or digital communications
Receivers
Interference or noise reduction
C375S346000, C375S285000, C455S307000, C708S300000
Reexamination Certificate
active
07907690
ABSTRACT:
An interference cancellation (IC) system and method for use within a 1553 communication system comprising a data bus carrying primary signals having a 1553 component and a non-1553 component are provided. The IC system has an input port, a 1553 data extraction block and an interference cancellation circuit with an interference measurement and a cancellation block. The interference measurement block receives 1553 decoded data from the 1553 data extraction block and a sampled primary signal via the input port, and, within an impulse response block, produces an interference signal based on a 1553 impulse response system model. The cancellation block subtracts the interference signal from the sampled primary signal and produces an output signal with the 1553 component substantially cancelled. Furthermore, an IC system using adaptive filtering techniques within the impulse response block is provided. The Least Mean Squares (LMS) algorithm can be used as an adaptive filter technique.
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Esmailian Tooraj
Fanson John
Hazy Laszlo
Price George
Taylor Doug
Edgewater Computer Systems, Inc.
Hayes & Soloway P.C.
Torres Juan A
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