Patent ID: 11971508
Assignee: APTIV TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 1:
2. The method of claim 1, further comprising:
during the initial frame:
transmitting a third transmit signal for a subsequent pixel of the two consecutive pixels having a third waveform that comprises a third frequency modulation, a third amplitude modulation, or a combination thereof;
receiving a third return signal comprising a version of the third transmit signal that is reflected by another object; and
generating a third beat signal by mixing the third return signal with the third transmit signal;

during the subsequent frame:
transmitting a fourth transmit signal for the subsequent pixel having a fourth waveform that comprises a fourth frequency modulation, a fourth amplitude modulation, or a combination thereof, at least one of the fourth frequency modulation and the fourth amplitude modulation having a different modulation than the third frequency modulation and the third amplitude modulation, respectively;
receiving a fourth return signal comprising a version of the fourth transmit signal that is reflected by the other object; and
generating a fourth beat signal by mixing the fourth return signal with the fourth transmit signal, wherein:
at least one of a center peak or a sideband peak of the fourth beat signal includes a different frequency than a center peak or a sideband peak of the third beat signal, respectively;
at least one of the third frequency modulation and the third amplitude modulation has a different modulation than the first frequency modulation and the first amplitude modulation, respectively; and
at least one of the fourth frequency modulation and the fourth amplitude modulation has a different modulation than the second frequency modulation and the second amplitude modulation, respectively; and

comparing the fourth beat signal to the third beat signal to increase a confidence in detecting the other object or in determining a characteristic of the other object.