CPC G01S 13/931 (2013.01) [G01S 7/282 (2013.01); G01S 7/285 (2013.01); G01S 13/84 (2013.01); G01S 7/027 (2021.05); G01S 2013/93271 (2020.01); G01S 2013/93272 (2020.01)] | 17 Claims |
1. A failure determination apparatus of a vehicle radar connected to a transmitter or a receiver for transmitting and receiving signals through a radar antenna, the failure determination apparatus comprising one or more processors configured to:
acquire at least a part of transmission signal or reception signal for each transmission channel or each reception channel;
calculate a representative value of signal characteristics for each channel based on the acquired transmission signal or reception signal; and,
select one normal range among a plurality of normal ranges based on a temperature sensed by a temperature sensor, each normal range defined by a respective signal characteristic value, a respective upper margin, and a respective lower margin which correspond to a respective temperature, and determine a failure of the transmitter or receiver if the calculated representative value of the signal characteristics is out of the selected one normal range defined by a signal characteristic value, a upper margin, and a lower margin which correspond to the temperature sensed by the temperature sensor.
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