Vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar

• Main Authors: SHEN LINJIE, PU SHILIANG, SHEN LIN, QIAN TONG
• Format: Patent
• Language: Chinese; English
• Published: 07.04.2020
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

The invention provides a vehicle-mounted radar array antenna failure detection method and device and vehicle-mounted radar. The vehicle-mounted radar array antenna failure detection method provided bythe invention comprises the following steps: for each antenna in an array antenna on a vehicle-mounted radar, counting a distribution rule of antenna data received by the antenna to obtain first distribution information corresponding to the antenna; determining a scene category of a current scene of the vehicle-mounted radar, and searching target distribution information corresponding to the scene category from a pre-established corresponding relationship between the scene category and second distribution information corresponding to the antenna when the antenna does not fail; and calculatingthe difference degree between the first distribution information and the target distribution information, and determining whether the antenna is invalid or not according to the difference degree. According to the vehicle-moun