SENSOR SYSTEM, SENSOR INFORMATION PROCESSING APPARATUS, NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM HAVING STORED THEREIN SENSOR INFORMATION PROCESSING PROGRAM, AND BED
A sensor system includes a transmitter configured to transmit radio wave and a detector configured to detect a body motion when a change in amplitude of a received wave of a transmitted radio wave is detected and a lack of a frequency component indicating one or both of a heartbeat and a respiration in a frequency analysis result of the received wave is detected.