公开(公告)号：US20230243921A1

公开(公告)日：2023-08-03

申请号：US17649759

申请日：2022-02-02

Applicant: QUALCOMM Incorporated

Inventor： Ahmad Bassil ZOUBI ,  Anant GUPTA ,  Sheng-Yuan TU ,  Roberto RIMINI ,  Neevan RAMALINGAM

IPC: G01S7/35 ,  G01S13/34 ,  H04B1/12

CPC classification number: G01S7/352 ,  G01S13/34 ,  H04B1/123

Abstract: In some aspects, a radar device may receive a plurality of received signals comprising a plurality of reflected frequency modulated continuous wave radar signals and phase noise. The radar device may obtain a frequency-domain representation of the received signals comprising a plurality of frequency-domain spectrums. The radar device may determine a shaped noise component of the frequency-domain representation corresponding to a negative distance portion of the frequency-domain representation. The radar device may determine a shaped decision boundary for target detection based at least in part on the shaped noise component, wherein the shaped decision boundary corresponds to a positive distance portion of the frequency-domain representation. The radar device may detect a radar target based at least in part on the shaped decision boundary. The radar device may perform an action based at least in part on detecting the radar target. Numerous other aspects are described.

公开(公告)号：US20230273296A1

公开(公告)日：2023-08-31

申请号：US17649259

申请日：2022-01-28

Applicant: QUALCOMM Incorporated

Inventor： Anant GUPTA ,  Roberto RIMINI ,  Sheng-Yuan TU ,  Ahmad Bassil ZOUBI ,  Neevan RAMALINGAM

IPC: G01S7/292 ,  G01S13/89 ,  G01S7/02 ,  G01S7/03

CPC classification number: G01S7/2927 ,  G01S7/03 ,  G01S7/023 ,  G01S13/89

Abstract: Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a wireless device may transmit a frequency-modulated continuous-waveform (FMCW) dual ramp radar signal over a time duration that sweeps from a first frequency to a second frequency and from the second frequency to the first frequency. The wireless device may receive a reflection of the radar signal with a first reflected part that corresponds to the first part of the radar signal and a second reflected part that corresponds to the second part of the radar signal. The wireless device may compare the first reflected part and a time-inverted version of the second reflected part to estimate a noise pattern. The wireless device may perform an action based at least in part on the noise pattern. Numerous other aspects are described.