There is provided a radar device. A transmitting unit transmits chirp waves based on a transmission signal whose frequency continuously increases or decreases. A receiving unit outputs reception signals based on reflected waves of the chirp waves from a target. A transmission control unit controls the transmitting unit to transmit a predetermined number of the chirp waves in a first transmission period, and then transmit the chirp waves more than the predetermined number in a second transmission period. A generating unit generates beat signals from the transmission signal and the reception signals. A signal processing unit derives a distance to the target based on the beat signals generated in the first transmission period, determine a distance range limited based on the derived distance, and derive the distance and a relative velocity to the target based on the beat signals generated in the second transmission period within the distance range.
RADAR DEVICE AND TARGET DETECTING METHOD
05.04.2018
Patent
Elektronische Ressource
Englisch
IPC: | B60W CONJOINT CONTROL OF VEHICLE SUB-UNITS OF DIFFERENT TYPE OR DIFFERENT FUNCTION , Gemeinsame Steuerung oder Regelung von Fahrzeug-Unteraggregaten verschiedenen Typs oder verschiedener Funktion / G01S RADIO DIRECTION-FINDING , Funkpeilung / G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / G06K Erkennen von Daten , RECOGNITION OF DATA |
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