Method and apparatus for blind signal extraction
AssigneeKorea Advanced Institute of Science and Technology
InventorsSoo-Young Lee, Jae-Kwon Yoo
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Abstract
An apparatus for extracting a signal from convolutive mixtures includes a receiving unit which includes two or more receivers and receives a signal; a transfer function calculation unit which calculates transfer functions for demixing; and a demixing unit which demixes the received signal using the calculated transfer functions. The transfer function is determined such that a signal is extracted from a source closest to the receivers, and is calculated on the basis of a transfer function for a path to each receiver being approximated to a delta function as closer to the source.
Claims20
An apparatus for extracting a signal from convolutive mixtures, the apparatus comprising:
- a receiving unit which includes two or more receivers and receives a convolutively-mixed signal;
- a transfer function calculation unit which calculates a transfer function for demixing;
- and
- a demixing unit which demixes the received convolutively-mixed signal using the calculated transfer function,
- wherein the transfer function is determined such that a signal is extracted from a source closest to the receivers, and is calculated on the basis of a transfer function for a path to each receiver being approximated to a delta function as closer to the source.
A method of extracting a signal by blind signal extraction, the method comprising:
- receiving a convolutively-mixed signal through two or more receivers;
- calculating a transfer function for demixing;
- and
- demixing the received convolutively-mixed signal using the calculated transfer function,
- wherein the transfer function is determined such that a signal is extracted from a source closest to the receivers, and is calculated on the basis of a transfer function for a path to each receiver being approximated to a delta function as closer to the source.
An apparatus for extracting a signal from convolutive mixtures, the apparatus comprising:
- a receiving unit which includes two or more receivers and receives a signal;
- a transfer function calculation unit which calculates a transfer function for demixing;
- and
- a demixing unit which demixes the received signal using the calculated transfer function,
- wherein the transfer function is determined such that a signal from a source in a known direction with respect to the receivers is removed and a signal from a remaining source is extracted.
A method of extracting a signal by blind signal extraction, the method comprising:
- receiving a convolutively-mixed signal through two or more receivers;
- calculating a transfer function for demixing;
- and
- demixing the received convolutively-mixed signal using the calculated transfer function,
- wherein the transfer function is determined such that a signal from a source in a known direction with respect to the receivers is removed, and a signal from a remaining source is extracted.
Dependencies are inferred from the claim text.