公开(公告)号：US20240201355A1

公开(公告)日：2024-06-20

申请号：US18538623

申请日：2023-12-13

Applicant: Stichting IMEC Nederland

Inventor： Chris Marshall ,  Erwin Allebes ,  Minyoung Song ,  Elbert Betchthum

IPC: G01S11/08

CPC classification number: G01S11/08

Abstract: A method for generating an ultra-wideband signal is provided. The method comprises the steps of generating at least one ultra-wideband pulse envelope comprising a main pulse and a precursor pulse, the precursor pulse being shorter in length and lower in amplitude compared to the main pulse, and modulating a carrier signal in amplitude such that the envelope corresponds to the at least one ultra-wideband pulse envelope and such that the carrier signal within the main pulse is phase-shifted with respect to the carrier signal within the precursor pulse.

公开(公告)号：US20230358874A1

公开(公告)日：2023-11-09

申请号：US18312300

申请日：2023-05-04

Applicant: Stichting IMEC Nederland

Inventor： Chris Marshall

IPC: G01S13/36 ,  G01S5/02

CPC classification number: G01S13/36 ,  G01S5/0273 ,  G01S5/0218

Abstract: A system for estimating position information with respect to at least one target node including for example two static nodes, at least one reference node, the at least one target node, and at least one processing unit. In this context, at least two of the at least two static nodes are configured each as a source for wirelessly transmitting at least signal fragments. Furthermore, at least two of the at least one reference node and the at least one target node are configured each as a receiver for wirelessly receiving the signal fragments from the at least two sources. In addition to this, the at least two receivers are configured to measure the phases of a set of common signal fragments from the at least two sources and to estimate position information with respect to the at least one target node on the basis of the phase measurements.