In accordance with an embodiment, a method includes: determining, based on radar data, whether a moving object is present in a field of view (FoV) of a radar sensor; determining, based on the radar data, a range of the moving object in response to determining that the moving object is present in the FoV; and activating a radar target function based on the range of the moving object

The invention describes a radar system (12) for a vehicle (10), a vehicle and a method for operating a radar system (12). The radar system (12) comprises at least one transmitting antenna arrangement that has at least one transmitting antenna element (Tx) for transmitting radar signals, at least one receiving antenna arrangement that has at least one receiving antenna element (Rx) for receiving radar echo signals, and at least one control and detection device (36) for actuating at least the transmitting antenna elements (Tx) and for detecting radar echo signals received by the at least one receiving antenna element (Rx), wherein the radar system (12) has at least one adjustment means (38) having at least one control scheme (44, 46) for adjusting at least one main beam axis of the at least one transmitting antenna arrangement. The at least one adjustment means (38) has at least two basic control schemes (44, 46) for different adjustments of the at least one main beam axis in at least one measurement mode of the radar system (12) and at least one intended use specification means (44, 48) for specifying one of the at least two basic control schemes (44) on the basis of an intended use of the radar system (12) in at least one measurement mode of the radar system (12).

A multiple input multiple output (MIMO) antenna for a radar system that includes a receive antenna, a first transmit antenna, and a second transmit antenna. The receive antenna is configured to detect radar signals reflected by a target toward the receive antenna. The first transmit antenna is formed of a first vertical array of radiator elements. The second transmit antenna is formed of a second vertical array of radiator elements distinct from the first vertical array. The second transmit antenna is vertically offset from the first transmit antenna by a vertical offset distance selected so an elevation angle to the target can be determined.

A multiple input multiple output (MIMO) antenna for a radar system includes a receive antenna, a first transmit-antenna-arrangement, and a second transmit-antenna-arrangement. The receive-antenna is configured to detect radar-signals reflected by a target toward the receive-antenna. The first transmit-antenna-arrangement includes a first vertical-array of radiator elements and a second vertical-array of radiator elements. The first transmit-antenna-arrangement is configured so the first vertical-array can be selectively coupled to a transmitter independent of the second vertical-array. The second transmit-antenna-arrangement includes a third vertical-array of radiator elements and a fourth vertical-array of radiator elements. The second transmit-antenna-arrangement is configured so the third vertical-array can be selectively coupled to a transmitter independent of the fourth vertical-array. The second transmit-antenna-arrangement is vertically offset from the first transmit-antenna-arrangement by a vertical offset distance selected so an elevation angle to the target can be determined by the receive-antenna.

A radar apparatus includes: a plurality of transmission antennas including a first transmission antenna forming a first beam and a second transmission antenna forming a second beam different from the first beam; and transmission circuitry, which, in operation, performs multiplexing transmission of a transmission signal from the plurality of transmission antennas, the transmission signal being a signal to which a phase rotation corresponding to a Doppler shift amount assigned to each of the plurality of transmission antennas has been applied. In the radar apparatus, a Doppler shift interval by the plurality of transmission antennas is uneven on a Doppler frequency axis, and a first pattern of the Doppler shift amount assigned to the first transmission antenna is different from a second pattern of the Doppler shift amount assigned to the second transmission antenna.

An embodiment of a radar subsystem includes at least one antenna and a control circuit. The at least one antenna is configured to radiate at least one first transmit beam and to form at least one first receive beam. And the control circuit is configured to steer the at least one first transmit beam and the at least one first receive beam over a first field of regard during a first time period, and to steer the at least one first transmit beam and the at least one first receive beam over a second field of regard during a second time period.