Radar device
AssigneeMitsubishi Electric Corporation
InventorYuichi GODA
Life of this patent
Estimating the term…
Abstract
In a radar device (1), when a distance determined based on a range of fields of view required of the radar device (1) is defined as a distance d, transmission antennas (Tx) are arranged side by side with an antenna interval that is larger than the distance d in a first array direction, which is perpendicular to an emission direction of a transmission signal, reception antennas (Rx) are arranged side by side at antenna intervals that are larger than the distance d in a second array direction, which is parallel to the first array direction, and the transmission antennas (Tx) and the reception antennas (Rx) form virtual reception antennas (VR), which have an antenna arrangement including at least one part in which a virtual antenna interval is the distance d or less.
Claims6
A radar device, comprising:
- a plurality of transmission antennas, wherein each of the plurality of transmission antennas emits a transmission signal toward an object in surroundings;
- a plurality of reception antennas, wherein each of the plurality of reception antennas receives the transmission signal reflected by the object to output the received transmission signal as a reception signal;
- and
- a signal processor to process the reception signal output from each of the plurality of reception antennas,
- wherein, when a distance determined based on a range of fields of view required of the radar device is defined as a distance d:
- of the plurality of transmission antennas, at least two transmission antennas are arranged side by side with an antenna interval that is larger than the distance d in a first array direction, which is perpendicular to an emission direction of the transmission signal;
- the plurality of reception antennas are arranged side by side at antenna intervals that are larger than the distance d in a second array direction, which is perpendicular to the emission direction and is parallel to the first array direction;
- and
- virtual reception antennas comprise the plurality of transmission antennas and the plurality of reception antennas, and the virtual reception antennas have an antenna arrangement including at least one part in which a virtual antenna interval is the distance d or less.
Dependencies are inferred from the claim text.