Iee International Electronics and Engineering S.a.

Hans Peter Beise

Thomas Stifter

Baptiste Anti

Udo Schroder

Johann Bar

A method of direction of arrival estimation with an automotive spread radar system. The automotive spread radar system includes a plurality of at least two transceiver antenna units, which are configured to work in a MIMO configuration, wherein the transceiver antenna units are arranged at a priori known positions. The automotive spread radar system is configured to determine, for each transceiver unit antenna unit of the plurality of transceiver antenna units, a range of a target reflecting radar waves that have been transmitted by at least the specific transceiver antenna unit by reading out a plurality of range gates assigned to a specific transceiver antenna unit. The method and radar system are capable of estimating a direction of arrival without the need of ensuring a synchronization of antennas on the scale of a radar carrier frequency.

Direction of arrival estimation for automotive spread radar systems

A method of operating a sensor system having at least one proximity sensor, with regard to generating a trigger signal indicative of an occurrence of an operator-intended event in the presence of noise. The method includes repetitive steps of: acquiring the sensor signal at specified sampling times, comparing a value obtained as a presently sampled sensor signal with a presently valid first threshold value, generating a trigger signal if the value obtained as the presently sampled sensor signal is as large as or exceeds the presently valid first threshold value, omitting to generate a trigger signal if the value obtained as the presently sampled sensor signal is less than or equal to the presently valid first threshold value, forming a subset out of the sampled sensor signals, determining an update value for the first threshold value, and replacing the presently valid first threshold value by the update value.

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Perl, Germany

Hans Peter Beise