Quadrature vestigial sideband digital communications method...

Details Quadrature vestigial sideband digital communications method... Quadrature vestigial sideband digital communications method...

2007-04-03

2007-04-03

Kumar, Pankaj (Department: 2611)

Pulse or digital communications

Receivers

Particular pulse demodulator or detector

Reexamination Certificate

active

10279569

ABSTRACT:
A quadrature vestigial-sideband (QVSB) method and system with correlated noise removal are embodied in a QVSB receiver with a correlated-noise estimator-subtractor configured to obtain I/Q channel correlated noise estimates for receive-filtered I/Q signals in the QVSB receiver, and to subtract the I/Q channel correlated noise estimates from the receive-filtered I/Q signals to whiten noises entering a quadrature-crosstalk, maximum-likelihood-sequence-estimator (QC-MLSE) of the QVSB receiver.

REFERENCES:
patent: 4019140 (1977-04-01), Swerdlow
patent: 4686705 (1987-08-01), Smith
patent: 5995567 (1999-11-01), Cioffi et al.
patent: 6449002 (2002-09-01), Markman et al.
patent: 6606010 (2003-08-01), Poklemba et al.

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