Data and decision-learning hybrid antenna arrangement for automobile radar

摘要

Hybrid antenna device for a motor vehicle with steerable transmitter antennas and receiver antennas. The receiver antennas are arranged in sub-arrays for data-adaptive and decision-adaptive digital beamforming processing. A controllable phase shifter is coupled between each receiver antenna and a summation network in each receiver antenna sub-array. The plurality of sub-array summing networks are linked in mixers together with a receiver direction reference signal, and a signal is output to the digital beamforming processor via A / D converters.