Patent ID: 7426232

Claim:
A received signal selector for a received orthogonal frequency division multiplexed (OFDM) signal comprising a set of OFDM carriers, the received signal selector being configured for use with an antenna system comprising a plurality of antenna elements, the received signal selector comprising: a plurality of received signal inputs for receiving signals from the plurality of antenna elements; a reference signal generator for generating a generated first reference OFDM signal; an interference detector for each of the received signal inputs, coupled to said received signal inputs to receive, from each input, a version of said received OFDM signal, and configured to provide an interference output for the set of OFDM carriers from each input; wherein the interference detector comprises at least one cross-correlator configured to determine a correlation between at least a portion of a version of said received OFDM signal and said generated first reference OFDM signal to provide said interference output, said generated first reference OFDM signal being generated is substantially orthogonal to said at least a portion of a version of said received OFDM signal; a selection controller configured to receive the interference output for each said input and having a control output; and a selector 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.