Patent ID: 11906618
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 15:
16. A multiple-input multiple-output (MIMO) radar apparatus, comprising:
transmitter circuitry, comprising a plurality of transmit channels, configured to:
transmit, via a first subset of transmit channels of the plurality of transmit channels and during a first transmit time interval, concurrent first frequency-modulated continuous-wave (FMCW) radar signals with different first phase offsets among different transmit channels of the first subset of transmit channels in accordance with a first predefined code division multiplexing scheme,
wherein the first subset of transmit channels comprises a first transmit channel associated with a first phase modulation vector, and a second transmit channel, associated with a second phase modulation vector different from the first phase modulation vector, and

transmit, via a second subset of transmit channels of the plurality of transmit channels and during a second transmit time interval subsequent to the first transmit time interval, concurrent second FMCW radar signals with different second phase offsets among different transmit channels of the second subset of transmit channels in accordance with a second predefined code division multiplexing scheme,
wherein the second subset of transmit channels comprises a third transmit channel associated with a third phase modulation vector, and a fourth transmit channel, associated with a fourth phase modulation vector different from the third phase modulation vector; and

receiver circuitry, comprising a receiver channel, configured to:
receive, during a first receive time interval, a first receive signal corresponding to reflections of the first FMCW radar signals; and
receive, during a second receive time interval subsequent to the first receive time interval, a second receive signal corresponding to reflections of the second FMCW radar signals.