| 摘要 |
PROBLEM TO BE SOLVED: To derive an amplification factor which is suitable when a strength of an inputted signal is small. SOLUTION: A radio unit 12 amplifies a plurality of received signals with a plurality of amplification factors, respectively. A measuring section 230 measures RSSI of digital reception signals 300 outputted from the radio unit 12, respectively. A derivation section 232 derives the plurality of amplification factors used for amplification processing in the radio unit 12 while changing a derivation method in accordance with the RSSI measured by the measuring section 230. A signal processing section 14 performs signal processing required for an adaptive array antenna to execute transmission/reception processing. A MODEM section 16 carries out modulation processing and demodulation processing. COPYRIGHT: (C)2006,JPO&NCIPI
|
