Back to results
US 10,379,209 B2Granted
Radar device
AssigneePanasonic Intellectual Property Management Co., Ltd.
InventorsTakaaki Kishigami, Tadashi Morita, Kiyotaka Kobayashi
Life of this patent
Estimating the term…
Abstract
A radar device includes: a transmission beam controller that selects, every first period, a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets each including at least two transmission beam directions; and a radar transmitter that transmits the radar signal in a predetermined transmission period by using the selected transmission beam set, wherein the transmission beam controller switching, every second period within the first period, among the at least two transmission beam directions included in the transmission beam set.
Claims20
A radar device comprising:
- a transmission beam controller, which, in operation, selects a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets, each of the plurality of transmission beam sets including at least two transmission beams having different directions, the transmission beams of the plurality of transmission beam sets having different directions from each other, the transmission beam controller, in operation, switches the at least two transmission beams included in the selected transmission beam set;
- and
- a radar transmitter, which, in operation, transmits the radar signal in a predetermined transmission period by using at least one of the at least two transmission beams included in the selected transmission beam set, wherein
- the transmission beam controller, in operation, switches, in each of multiple first periods, the selected transmission beam set from one of the plurality of transmission beam sets to another of the plurality of transmission beam sets,
- the transmission beam controller, in operation, switches, in each of multiple second periods within each of the multiple first periods, from a transmission beam from one of the at least two transmission beams included in the selected transmission beam set to another of the at least two transmission beams included in the selected transmission beam set, and
- each of the transmission beams included in the selected transmission beam set within each of the multiple first periods is transmitted in at least two of the multiple second periods within each of the multiple first periods.
3 more elements
A radar device comprising:
- a transmission beam controller, which, in operation, selects a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets, each of the plurality of transmission beam sets including at least four transmission beams having different directions, the transmission beam controller, in operation, switches the at least four transmission beams included in the selected transmission beam set;
- and
- a radar transmitter, which, in operation, transmits the radar signal in a predetermined transmission period by using at least one of the at least four transmission beams included in the selected transmission beam set, wherein
- the transmission beam controller, in operation, selects, in each of multiple first periods, the transmission beam set used for transmission of the radar signal, and switches, in each of multiple second periods within each of the multiple first periods, from a transmission beam from one of the at least four transmission beams included in the selected transmission beam set to another of the at least four transmission beams included in the selected transmission beam set,
- each of the transmission beams included in the selected transmission beam set within each of the multiple first periods is transmitted in at least two of the multiple second periods within each of the multiple first periods, and
- each of transmission beams selected from the at least four transmission beams in one period of the multiple first periods is different from each of transmission beams selected from the at least four transmission beams in another period of the multiple first periods.
3 more elements
A radar device comprising:
- a transmission beam controller, which, in operation, selects a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets, each of the plurality of transmission beam sets including at least two transmission beams having different directions, the transmission beam controller, in operation, switches the at least two transmission beams included in the selected transmission beam set;
- and
- a radar transmitter, which , in operation, transmits the radar signal in a predetermined transmission period by using at least one of the at least two transmission beams included in the selected transmission beam set, wherein
- the transmission beam controller, in operation, selects, every first period, the transmission beam set used for transmission of the radar signal, and switches, every second period within the first period, from a transmission beam from one of the at least two transmission beams included in the selected transmission beam set to another of the at least two transmission beams included in the selected transmission beam set,
- the length of the second period varies depending on a directivity gain of a corresponding one of the transmission beams, and
- the second period has a longest length for a transmission beam in which the directivity gain is lowest out of the at least two transmission beams having different directions.
3 more elements
A radar device comprising:
- a transmission beam controller, which, in operation, selects a transmission beam set used for transmission of a radar signal from among a plurality of transmission beam sets, each of the plurality of transmission beam sets including at least two transmission beams having different directions, the transmission beam controller, in operation, switches the at least two transmission beams included in the selected transmission beam set;
- and
- a radar transmitter, which, in operation, transmits the radar signal in a predetermined transmission period by using at least one of the at least two transmission beams included in the selected transmission beam set, wherein
- in a case where the radar device is mounted in a vehicle, the transmission beam controller adjusts a number of the transmission beams included in each of the plurality of transmission beam sets in accordance with a speed of the vehicle, and
- the number of the transmission beams in a case where the speed of the vehicle is equal to or lower than a predetermined threshold value is larger than that in a case where the speed of the vehicle exceeds the predetermined threshold value.
2 more elements
Dependencies are inferred from the claim text.