Method and device for the suppression of periodic...

Details Method and device for the suppression of periodic... Method and device for the suppression of periodic...

2002-11-18

2010-02-02

Liu, Shuwang (Department: 2611)

Pulse or digital communications

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C375S148000, C375S254000, C375S285000, C375S346000, C455S063100, C455S297000, C455S570000

Reexamination Certificate

active

07656933

ABSTRACT:
A method and device are provided for suppressing periodic interference signals, including a unit which is used to provide a period length for the periodic interference signal, an interference detection unit for detecting a signal corresponding to the interference signal, and a subtraction unit for subtracting the signal corresponding to the interference signal. The interference detection unit carries out multiple superpositioning of the input signal and scales the multiple superpositioned input signal depending on the period length of the interference signal in order to detect the signal corresponding to the interference signal.

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Meir Feder, “Parameter Estimation and Extraction of Helicopter Signals Observed with a Wide-Band Interference”, IEEE Transactions on Signal Processing, Jan. 1993, vol. 41, No. 1, pp. 232-244.

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