| 摘要 |
PROBLEM TO BE SOLVED: To provide a technique for improving the reception characteristics while suppressing deterioration of sound quality even in an environment where an interference signal exists. SOLUTION: A pre-stage filter 14 inputs a plurality of reception signals each corresponding to a plurality of antennas 10. A post-stage filter 16 band-limits each of the plurality of inputted reception signals. A first compositing section 18 derives a weight vector for the plurality of band-limited reception signals, and array-composites the plurality of band-limited reception signals while using the derived weight vector. A signal buffer 58 delays each of the plurality of inputted reception signals. A second compositing section 20 array-composites the plurality of inputted reception signals delayed by the signal buffer 58 while using the derived weight vector. A demodulating section 22 demodulates the results of array compositing in the second compositing section 20. COPYRIGHT: (C)2011,JPO&INPIT
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