公开(公告)号：US12130377B2

公开(公告)日：2024-10-29

申请号：US17302295

申请日：2021-04-29

Applicant: QUALCOMM Incorporated

Inventor： Xinjie Yang ,  Nan Zhang ,  Roberto Rimini ,  Danlu Zhang

IPC: G01S7/35 ,  G01S13/58 ,  H04W88/02

CPC classification number: G01S7/352 ,  G01S13/584 ,  H04W88/02

Abstract: In some aspects, a radar device may receive a received signal comprising a reflected frequency modulated continuous wave (FMCW) radar signal and interference. The radar device may identify the reflected FMCW radar signal based at least in part on performing a phase based search procedure to facilitate removing the interference from the received signal. The radar device may perform an action based at least in part on a characteristic of the identified reflected FMCW radar signal. Numerous other aspects are described.

公开(公告)号：US11047952B2

公开(公告)日：2021-06-29

申请号：US16234717

申请日：2018-12-28

Applicant: QUALCOMM Incorporated

Inventor： Nan Zhang ,  Roberto Rimini ,  Xinjie Yang ,  Vijay Varadarajan ,  Bo Wang

IPC: G01S7/03 ,  G01S7/35 ,  G01S13/34

Abstract: Apparatus and methods are disclosed for determining, on a small form factor 5G communication device, the range of a target object include receiving, at a receiving antenna of the small form factor communication device, a composite signal where the composite signal includes a target reflection signal and a mutual coupling (MC) leakage signal, generating a composite beat waveform by mixing the composite signal with an original signal, where the composite beat includes target beat and MC leakage beat waveform components, isolating the target beat waveform by subtracting from the composite beat waveform a weighted, k-delayed composite beat waveform, where for a configured k the target beat waveforms are uncorrelated and the MC leakage beat waveforms are correlated, and determining, using the target beat waveform, a range of the target object from the small form factor device.