| 摘要 |
<p>The present invention relates to a method and device for determining the incoming direction of signals interfering with a useful OFDM signal comprising known symbols, said signal being received by an antenna array. The method includes a step for digitizing (101) the signals received on each antenna, a step for synchronizing (102) with the symbols of said useful signal, and a step for demodulating (103) the digitized signals. The method moreover includes, for each received OFDM symbol, the following steps: estimating the contribution of the interfering signals (104, 105) on the basis of said known symbols; and performing goniometry on the interfering signals estimated during the preceding step. The invention is in particular of use in the goniometry of interfering signals that are present on the same frequency band as a known signal modulated by a plurality of carriers, the interfering signals having a lower amplitude than the known signal.</p> |
