Reception device, reception method, recording medium for receiving signals

A reception method comprising:

• subjecting a received signal to orthogonal detection so as to output an I-phase baseband signal and a Q-phase baseband signal orthogonal to each other;
• reducing a direct current component of each of the baseband signals by using high-pass filters;
• demodulating each of the baseband signals with the reduced direct current component;
• detecting an unevenness in a distribution of each of the baseband signals with the reduced direct current component;
• and
• changing a status of the high-pass filters when an unevenness in the distribution is detected.

A non-transitory computer readable recording medium encoded with a computer program, the program comprising computer-implemented modules including:

• a module that subjects a received signal to orthogonal detection so as to output an I-phase baseband signal and a Q-phase baseband signal orthogonal to each other;
• a module that reduces a direct current component of each of the baseband signals by using high-pass filters;
• a module that demodulates each of the baseband signals with the reduced direct current component;
• a module that detects an unevenness in a distribution of each of the baseband signals with the reduced direct current component;
• and
• a module that changes a status of the high-pass filters when an unevenness in the distribution is detected.