Radar system for use in driver assistance system of e.g. airplane, has signal processing device evaluating signal received by radar receiving antenna, and comprising directional transmitter and two sound converters

摘要

The system (1) has a radar device (2) with a radar transmitting antenna (3) for aligned transmission of electromagnetic radiation, and a radar receiving antenna (4) for aligned receiving of radiation. An acoustic transmitting device (6) produces an acoustic signal (8) with a frequency in an ultrasonic range of 30-1000 kilo Hertz. A signal processing device (13) evaluates the signal received by the receiving antenna. The acoustic transmitting device has a directional transmitter with certain direction characteristic, and two sound converters (7) designed as acrostic directional antennas. An independent claim is also included for a method for detecting a sensor blockade in a radar system.