Method for operating a MIMO radar system and a radar system designed for it

摘要

Method for operating a MIMO radar system with several transmission and reception channels, in which each reception channel has a mixer with which a radar reception signal can be mixed down to a baseband, with several in the mixer between a signal input for the radar reception signal and a signal output series-connected mixers (4, 5) are used and each of the mixers (4, 5) is supplied with a LO signal at a frequency that is lower than a transmission frequency of the radar system, and the frequencies of the supplied LO signals in total the Resulting transmission frequency, characterized in that two mixers (4, 5) connected in series are used in the mixing device and a LO signal with half the transmission frequency is fed to each of the mixers (4, 5).