DTV circuitry for measuring multipath distortion based on ghosting of data segment synchronizing signals

Invention: DTV circuitry for measuring multipath distortion based on ghosting of data segment synchronizing signals

Year	Description
1999	Invention patented by Allen LeRoy Limberg on January 12th, 1999. Abstract: Baseband DTV signals are supplied to a cascade filter connection of a transversal filter operative over many data segments and a match filter for data segment synchronizing (DSS) signals. The accumulated random data in the cascade filter response is suppressed by coring, to generate a signal ensemble descriptive of ghosted DSS signal. The transmission channel is characterized based on this ensemble, and the coefficients of a complementary channel-equalization and ghost cancellation filter are calculated based on this characterization.
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