Infineon Technologies Ag

Michael Jung

Markus Hammes

Grigory Itkin

Roland Hellfajer

Thomas Convent

A method for calibrating a radar system includes generating an RF oscillator signal and distributing the RF oscillator signal to a plurality of phase shifters each providing a respective phase-shifted RF oscillator signal; receiving the phase-shifted RF oscillator signals by corresponding radar chips and radiating the phase-shifted RF oscillator signal via a first RF output channel of a first one of the radar chips; receiving a back-scattered signal by at least one RF input channel of each radar chip and generating a plurality of base-band signals by down-converting the received signals into a base band using the phase-shifted RF oscillator signals received by the corresponding radar chips; determining a phase for each base-band signal; and adjusting the phase shifts caused by the phase shifters such that the phases of the base-band signals match a predefined phase-over-antenna-position characteristic.

Calibration of a radar system using plurality of phase shifted oscillator signals

The present invention provides a method for automatic identification of the clock frequency of a system clock () for the configuration of a peripheral device (), having the following steps: generation of a secondary clock () at a predetermined clock frequency; application of the system clock () and of the secondary clock () to a host (); application of the system clock () and of the secondary clock () to the peripheral device (); determination of the clock frequency of the system clock () in the peripheral device () by means of the secondary clock (); and configuration of the peripheral device () using the determined system clock ().

Growing community of inventors

Ottobrunn, Germany

Michael Jung