CPC G01S 7/032 (2013.01) [G01S 7/35 (2013.01); G01S 7/03 (2013.01); G01S 7/352 (2013.01); G01S 13/003 (2013.01); G01S 13/32 (2013.01); G01S 13/343 (2013.01); G01S 13/583 (2013.01); G01S 13/584 (2013.01); G01S 13/878 (2013.01); G01S 13/931 (2013.01)] | 24 Claims |
1. A radar system, comprising:
a first radar chip comprising a local oscillator comprising a first output, the local oscillator is configured to provide a local oscillator signal at the first output;
a first frequency divider contained in the first radar chip and comprising a second output, the first frequency divider being coupled to the first output of the local oscillator and being configured to provide a frequency-divided signal based on the local oscillator signal at the second output; and
a second radar chip comprising:
a first input coupled to the first output and configured to receive the local oscillator signal from the first output of the first radar chip;
a second input coupled to the second output and configured to receive the frequency-divided signal from the second output of the first radar chip;
an output channel, to which the local oscillator signal received at the first input is fed, configured to generate an output signal based on the local oscillator signal; and
a circuit configured to generate, based on the output signal of the output channel and the received frequency-divided signal, a phase angle signal indicating a phase angle of the output signal relative to the received frequency-divided signal.
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