Fast adapting fading channel equalizer
AssigneeSignatron, Inc.
InventorPeter Monsen
Life of this patent
Estimating the term…
Abstract
A receiver system for processing diversity channel signals to substantially eliminate future and past intersymbol interference (ISI) in received signals which have been transmitted through a time-varying frequency selective transmission medium. The system includes lattice filter means which provide forward error residual signals which are used for generating uncorrelated adaptive weighting signals which eliminate future ISI and decision feedback circuitry which provide uncorrelated adaptive weighting signals which eliminate past ISI.
Claims11
A receiver system for processing signals received in a plurality of diversity channels, said receiver system comprising adaptive matched filter means responsive to said received signals for providing a diversity combined received signal;
- means responsive to said diversity combined received signal for adaptively correcting for intersymbol interference in said received diversity signal, said adaptively correcting means including
- adaptive lattice filter means responsive to said diversity combined received signal for providing a plurality of error residual signals which form an uncorrelated set of signals, said lattice filter means using said uncorrelated error residual signals for producing an adaptively corrected signal in which future intersymbol interference and past intersymbol interference are substantially eliminated;
- and
- decision detector means responsive to said adaptively correcting means for producing a quantized data output signal.
Dependencies are inferred from the claim text.