Radar device for vehicle and controlling method thereof
AssigneeHl Klemove Corp.
InventorsJung Hwan Choi, JinGu Lee, Han Byul Lee, Jae Hyun Han
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Abstract
The embodiments of the present disclosure relate to a radar device including an antenna unit including a transmission antenna for transmitting a transmission signal and a receiving antenna for receiving a reception signal reflected from a target, a signal processor configured to determine target direction information by using a phase difference between the reception signals received from the respective receiving antennas, and a controller configured to control to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively.
Claims15
A radar device for a vehicle comprising:
- an antenna unit including a transmission antenna for transmitting a transmission signal and a receiving antenna for receiving a reception signal reflected from a target;
- a signal processor configured to determine target direction information by using a phase difference between the reception signals received from the respective receiving antennas;
- and
- a controller configured to control to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively,
- wherein the signal processor is configured to, if a preset phase correction condition is satisfied, correct a second mode reception signal received in the second mode based on a first mode reception signal received in the first mode, and
- wherein the signal processor determines phase difference information included in only the first mode reception signal or only the second mode reception signal for each target based on phase information included in each reception signal.
A controlling method of a vehicle radar device comprising:
- controlling to perform a first mode and a second mode for transmitting and receiving signals at different pulse repetition intervals, respectively;
- transmitting transmission signals using transmission antennas and receiving a first mode reception signal at the first mode and a second mode reception signal at the second mode reflected from a target using receiving antennas;
- determining phase difference information by using phase information included in only the first mode reception signal or only the second mode reception signal;
- determining target direction information by using the phase difference information;
- and
- correcting the target direction information by correcting, based on a preset phase correction condition, the phase information included in the second mode reception signal based on the first mode reception signal.
Dependencies are inferred from the claim text.