Radar device, radar transmission method, and transmission timing control method
AssigneeFuruno Electric Co., Ltd.
InventorMasahiro Nakahama
Life of this patent
Estimating the term…
Abstract
There is provided a radar device with which the density of transmitted signals can be made uniform in relation to orientation even if the rotation rate of an antenna fluctuates, and interference removal processing can be given a simpler configuration. A radar device that transmits and receives signals while rotating an antenna comprises a motor, a transmission pulse generator, and a transmitter. The motor rotates the antenna (antenna main body). The transmission pulse generator generates transmission timing pulses for transmission signals from the antenna based on the rotational angle of the antenna main body. The transmitter transmits transmission signals via the antenna according to the transmission timing pulses generated by the transmission pulse generator.
Claims10
A radar device for transmitting and receiving signals while rotating an antenna, the radar device comprising:
- a driver configured to rotate the antenna;
- a transmission timing signal generator configured to generate a transmission timing signal for transmission signals from the antenna, based on the rotational angle of the antenna;
- and
- a transmitter configured to transmit the transmission signals via the antenna according to the transmission timing signal generated by the transmission timing signal generator;
- the transmission timing signal generator being further configured to switch between a state in which the transmission timing signals are generated based on the rotational angle of the antenna, and a state in which the transmission timing signals are generated at specific time intervals.
A radar transmission method for transmitting signals while rotating an antenna, the method comprising:
- rotating the antenna;
- outputting a rotational angle of the antenna;
- generating a transmission timing signal for transmission signals transmitted by the antenna, based on the rotational angle of the antenna;
- transmitting the transmission signals via the antenna according to the transmission timing signal;
- and
- switching between a state in which the transmission timing signals are generated based on the rotational angle of the antenna, and a state in which the transmission timing signals are generated at specific time intervals.
A transmission timing control method for controlling a transmission timing of signals repeatedly transmitted from a rotating antenna, the method comprising:
- acquiring a rotational angle of the antenna;
- generating a transmission timing signal for transmission signals transmitted by the antenna, based on the rotational angle of the antenna;
- transmitting signals based on the transmission timing signal;
- and
- switching between a state in which the transmission timing signals are generated based on the rotational angle of the antenna, and a state in which the transmission timing signals are generated at specific time intervals.
Dependencies are inferred from the claim text.