| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for executing adaptive array processing when different types of signals are included in a reception signal. SOLUTION: A pre-stage filter 14 inputs a plurality of reception signals corresponding to a plurality of respective antennas 10, wherein in the reception signals, an OFDM signal and an FM signal are frequency-division-multiplexed. A post-stage filter 16 converts each of the reception signals into a frequency region, inserts zero into a sub-carrier different from a sub-carrier having a known signal disposed therein, and then, converts the reception signals having inserted zero into a time region. A first compositing section 18 derives a weight vector for the plurality of reception signals converted by the post-stage filter 16, and array-composites the plurality of converted reception signals while using the derived weight vector. A second compositing section 20 array-composites the plurality of reception signals from the pre-stage filter 14 while using the derived weight vector. COPYRIGHT: (C)2011,JPO&INPIT |
