Patent ID: 11940522
Assignee: DENSO CORPORATION
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 12:
13. An antenna apparatus comprising:
a transmission-reception antenna unit that includes
a plurality of transmission antennas along a predetermined array direction, and
a plurality of reception antennas along the array direction,
the plurality of transmission antennas and the plurality of reception antennas forming a virtual array in which a plurality of virtual reception antennas are arranged along the array direction;

an object detecting unit that is configured to detect an object that reflects transmission signals that are transmitted from the plurality of transmission antennas, based on a plurality of virtual reception signals received by the plurality of virtual reception antennas;
an orientation power calculating unit that is configured to calculate orientation power that is electric power of a signal that is received from an orientation of the object that is detected by the object detecting unit, among the plurality of virtual reception signals;
a residual power calculating unit that is configured to calculate residual power that is electric power of a signal other than the signal that is received from the orientation, among the plurality of virtual reception signals; and
a power ghost determining unit that is configured to determine that the object that is detected by the object detecting unit is a ghost, in response to a power subtraction value being less than a predetermined power threshold, the power subtraction value being obtained by the residual power that is calculated by the residual power calculating unit being subtracted from the orientation power that is calculated by the orientation power calculating unit.