| 摘要 |
<p>A method for initializing an equalizer in an Orthogonal Frequency Division Multiplexing ("OFDM") receiver includes generating a desired equalizer tap setting based on an adaptive algorithm. An initial setting for the adaptive algorithm corresponds to an approximate inverse of a channel estimate, and the desired tap setting corresponds to an ideal inverse of the channel estimate. In an alternative embodiment, a method includes generating a channel estimate (220), generating an equalizer tap setting (260) based on a complex conjugate (250) of the estimate and a quantized magnitude squared (240) of the estimate, and repeatedly generating subsequent tap settings until an error falls within limits. In another alternative embodiment, an apparatus includes a tap initialization controller (108) configured to: generate a channel estimate (220), generate an equalizer tap setting (260) based on a complex conjugate (250) of the estimate and a quantized magnitude squared (240) of the estimate, and repeatedly generate subsequent tap settings until an error falls within limits.</p> |
