Electronic device, method for controlling electronic device, and program

An electronic device comprising:

• a transmission antenna unit including phase control units and a plurality of transmission antennas and configured to transmit a transmission wave;
• a reception antenna configured to receive a reflected wave that is the transmission wave having been reflected;
• and
• a controller configured to:
• detect a body movement of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave;
• and
• in response to detection of the body movement, control a beam of the transmission wave to track the body movement by calculating an inverse matrix of a covariance matrix of an input signal, and a weight of the beam of the transmission wave by using a value calculated by using a correlation value between a phase and an amplitude of each antenna.

A non-transitory computer-readable recording medium storing computer program instructions, which when executed by an electronic device, cause the electronic device to:

• transmit a transmission wave from a transmission antenna unit including phase control units and a plurality of transmission antennas;
• receive, at a reception antenna, a reflected wave that is the transmission wave having been reflected;
• detect a body movement of a subject that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave;
• and
• in response to detection of the body movement, control a beam of the transmission wave to track the body movement by calculating an inverse matrix of a covariance matrix of an input signal, and a weight of the beam of the transmission wave by using a value calculated by using a correlation value between a phase and an amplitude of each antenna.