| 摘要 |
<p>A communication apparatus (100A) comprises: a quadrature detecting unit (13) for quadrature detecting a baseband OFDM signal to generate a complex OFDM signal; an FFT unit (15) for subjecting the complex OFDM signal to a Fourier transform processing, thereby outputting a complex symbol for each of a plurality of subcarriers; and a reception power calculating unit (16) for acquiring the reception power of the received signal on the basis of square sum of the in-phase and quadrature signals of the complex symbols of the subcarriers outputted by the FFT unit (15). The reception power calculating unit (16) has a table, which represents a relationship between the reception power and the square sum of the in-phase and quadrature signals of the complex symbols, and uses the table to acquire the reception power of the received signal.</p> |
