| 摘要 |
<p>A wireless communication device obtains an analog received signal by receiving a wireless signal, adjusts amplitude by a variable gain amplifier (107), converts the analog received signal into a digital received signal by an A/D converter (113) and obtains user data by demodulating (114) the digital received signal. The device includes a received signal strength indication detecting section (108) that detects a received signal strength indication that fluctuates over time; a gain controlling section (109) that controls a gain of the variable gain amplifier (107); a propagation environment judging section (110) that judges a propagation environment level of the wireless signal, and a time constant controlling section (112) that controls a time constant, based on the judged propagation environment level such that the time constant becomes larger as the propagation environment level becomes lower, the time constant regulating a change speed of the gain at the variable gain amplifier (107).</p> |
