公开(公告)号：US20240073068A1

公开(公告)日：2024-02-29

申请号：US18348628

申请日：2023-07-07

Applicant: QUALCOMM Incorporated

Inventor： Sheng-Yuan Tu ,  Roberto Rimini ,  Anant Gupta ,  Ahmad Bassil Zoubi ,  Neevan Ramalingam

IPC: H04L27/01 ,  H04L25/03

CPC classification number: H04L27/01 ,  H04L25/03343 ,  H04L2025/03426

Abstract: An apparatus is disclosed that implements interference and/or clutter cancellation using cross-channel equalization. In example aspects, the apparatus includes a wireless transceiver configured to be connected to multiple feed ports. The wireless transceiver is also configured to transmit an electromagnetic signal using a first feed port of the multiple feed ports. A modulated spur is generated based on the transmission of the electromagnetic signal. The wireless transceiver is additionally configured to receive two versions of a receive signal respectively via two feed ports of the multiple feed ports. The receive signal comprises the modulated spur and a mutual-coupling component associated with the transmission of the electromagnetic signal. The wireless transceiver is further configured to generate a filtered signal by attenuating the mutual-coupling component and the modulated spur within one of the two versions of the receive signal using cross-channel equalization.

公开(公告)号：US12248089B2

公开(公告)日：2025-03-11

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

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.