| 摘要 |
<p>A communicating apparatus includes: a local signal generator, an orthogonal modulator, an orthogonal demodulator, and two orthogonal error compensators. The local signal generator generates a first local signal and a second local signal. The orthogonal modulator modulates an input signal by using the first local signal. The orthogonal demodulator demodulates the modulated signal by using the second local signal. The two orthogonal error compensators correct orthogonal modulation errors generated in the orthogonal modulator and demodulation errors generated in the orthogonal demodulator, respectively. Values to be set by the orthogonal error compensators are calculated based on (1) the phase difference between the first local signal and the second local signal, (2) the input signal and (3) the demodulated signal.</p> |
