| 摘要 |
This invention relates to improved antenna techniques, particularly for orthogonal frequency division multiplexed (OFDM) communications systems. The invention provides a received signal selector (800) for a received signal comprising a set of carriers, the received signal selector being configured for use with an antenna system comprising a plurality of antenna elements (802), the received signal selector comprising a plurality of received signal inputs (803) for receiving signals from the plurality of antenna elements, an interference detector (804) for each of the received signal inputs, coupled to said received signal inputs to receive, from each input, a version of said received signal, and configured to provide an interference output for the set of carriers from each input, a selection controller (816) configured to receive the interference output for each said input and having a control output, and a selector (808) coupled to said received signal inputs and responsive to said control output to select one or more of said versions of said received signal for output. The invention provides a simplified technique for mitigating the effects of co-channel interference and severe multipath distortion.
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