Patent ID: 11906614
Assignee: APTIV TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G  H

Claim 10:
11. A multiple-input-multiple-output (MIMO) radar system comprising:
multiple first transmit channels;
multiple second transmit channels that are different than the first multiple channels;
multiple receive channels; and
at least one processor configured to:
simultaneously transmit a first plurality of chirp signals with the first multiple channels and a second plurality of chirp signals with the second multiple channels using a slow-time modulation method comprising:
modulating, using code-division multiplexing, the first plurality of chirp signals with a phase-modulation that is defined by a sequence of codes;
modulating the second plurality of chirp signals based on:
code-division multiplexing with the phase-modulation that is defined by the sequence of codes; and
frequency-division multiplexing based on a frequency shift that is defined by a frequency shift sequence;

responsive to simultaneously transmitting the first plurality of chirp signals and the second plurality of chirp signals, receive, from multiple receive channels, a plurality of chirp returns corresponding to the first plurality of chirp signals and the second plurality of chirp signals; and
responsive to demodulating the plurality of chirp returns in slow-time, output, to an automotive system, radar data identifying objects inferred from the demodulated plurality of chirp returns.