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公开(公告)号：US20240201317A1
公开(公告)日：2024-06-20
申请号：US18539394
申请日：2023-12-14
Applicant: IMEC VZW
Inventor： Andre Bourdoux , Pierre Wambacq , Giuseppe Gramegna
CPC classification number: G01S7/006 , G01S7/03 , G01S13/584 , G01S13/86
Abstract: Example embodiments describe a radio device for wireless communication and radar sensing, the radio device including: a transmitter configured to generate a modulated RF signal and to transmit the modulated RF signal via a transmitting antenna; and a receiver configured to receive a modulated RF signal via a receiving antenna and to down-convert the received modulated RF signal. The radio device additionally includes a selector unit configured to provide the receiver with a copy of the transmit modulated RF signal, or, a local oscillator signal for down-converting the received modulated RF signal, thereby enabling wireless communication and radar sensing operation.
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公开(公告)号：US11428778B2
公开(公告)日：2022-08-30
申请号：US16450885
申请日：2019-06-24
Applicant: IMEC vzw
Inventor： Marc Bauduin , Andre Bourdoux
Abstract: In a radar system, a cancellation circuit is described for compensating for the effects of spillover between each transmitter and a receiver. The cancellation circuit is configured for applying cancellation signals to the receiver which are generated in a cancellation filter utilizing a primary impulse response characteristic corresponding to the spillover, a signal to be transmitted from each transmitter in the radar system, and a range profile output from the receiver. The cancellation circuit may also include a secondary impulse response characteristic module and a dithering module to improve the sensitivity of the receiver.
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公开(公告)号：US20220155433A1
公开(公告)日：2022-05-19
申请号：US17526627
申请日：2021-11-15
Applicant: Imec vzw
Inventor： Marc Bauduin , Andre Bourdoux
IPC: G01S13/58
Abstract: A method for facilitating robust radar detection comprises generating a radar signal in a digital domain along at least one transmission path, the radar signal comprises a number of M periodic repetitions of a code sequence with a length Lc, multiplied with a progressive phase rotation ej·π/K·n, where Lc and M are integers, K is an integer or a non-integer, and n is a discrete time index corresponding to a code rate. The method further comprises generating a process input signal in the digital domain along at least one receiving path from a digitized reflection signal corresponding to the radar signal by multiplying the digitized reflection signal with a progressive phase rotation e−j·π/K·n. In this context, K is defined such that a ratio Lc/2·K is a non-integer, and M is defined such that a ratio Lc·M/2·K is an integer.
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公开(公告)号：US20220155412A1
公开(公告)日：2022-05-19
申请号：US17527796
申请日：2021-11-16
Applicant: Imec vzw
Inventor： Marc Bauduin , Andre Bourdoux
Abstract: A method is provided for facilitating radar detection robust to IQ imbalance. The method comprises the step of generating a radar signal in digital domain comprising a number of M periodic repetitions of a code sequence with a length Lc, multiplied with a progressive phase rotation e j · π K · n , where Lc and M are integers, K is an integer or a non-integer, and n is a discrete integer variable. The method further comprises the step of generating a process input signal in digital domain from a reflection signal corresponding to the radar signal by multiplying the reflection signal with a progressive phase rotation e - j · π K · n . In this context, K is defined such that a ratio Lc K is a non-integer, and M is defined such that a ratio Lc · M K is an integer.
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Patent Agency Ranking
15.发明申请公开(公告)号：US20190250262A1
公开(公告)日：2019-08-15
申请号：US16272990
申请日：2019-02-11
Applicant: IMEC vzw
IPC: G01S13/04 , G01S13/56 , G08B13/196 , G01S7/00 , G01S13/46
Abstract: Methods are described for the determination of a boundary of a space of interest using a radar sensor. In one aspect, a radar sensor scans and tracks all moving targets within the field of view and derives information relating to the tracked moving targets, such as, positional information and velocity information. From the positional and velocity information, regions which are not traversed by the tracked moving targets correspond to “no-go” regions. These “no-go” regions are used to derive a model for the space of interest which includes a boundary for the space of interest. The derived model is continuously updated due to the continuous detecting and tracking of moving targets within the field of view of the radar sensor. The detecting and tracking of moving targets can also be used to refine models of spaces of interest determined by another method.
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公开(公告)号：US12025727B2
公开(公告)日：2024-07-02
申请号：US17127111
申请日：2020-12-18
Applicant: IMEC VZW
Inventor： Andre Bourdoux , Marc Bauduin
CPC classification number: G01S7/2813 , G01S13/288 , G01S13/505 , G01S13/89 , G01S7/0233 , G01S13/584
Abstract: A method of radar ranging comprises transmitting a digitally-modulated signal comprising successively in time, for each sequence in a plurality N of sequences, a plurality M+1 of repeats of said sequence, wherein each said sequence consists of a plurality Lc of digitally-modulated chips, wherein at least one sequence in the plurality of sequences is different from another sequence in said plurality of sequences; receiving a version of the digitally-modulated signal reflected scattered by one or more physical targets; for each sequence in the plurality of sequences, performing a preliminary target estimation; and using each said preliminary target estimation for all sequences in the plurality of sequences, performing a final target estimation.
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公开(公告)号：US11855675B2
公开(公告)日：2023-12-26
申请号：US17505396
申请日：2021-10-19
Applicant: Imec vzw
Inventor： Mamoun Guenach , Andre Bourdoux
CPC classification number: H04B1/40 , H04B1/0483 , H04B1/1607 , H04B2001/0408
Abstract: A system for providing distributed communication with respect to a user equipment is provided. The system includes multiple communication units for distributing the communication with respect to the user equipment, a communication management unit connected to at least a pan of the multiple communication units in a connection line for managing the distributed communication, a connection unit including loss-inserting properties for connecting the multiple communication units to the connection line, an amplifying unit for being arranged with respect to the connection units, and a scheduling unit. The scheduling unit is configured to determine power loss with respect to the units on the basis of the corresponding loss-inserting properties and/or to schedule at least one of the multiple communication units and/or the at least one amplifying unit m order to compensate for power loss with respect to the at least one connection unit.
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公开(公告)号：US20220114363A1
公开(公告)日：2022-04-14
申请号：US17448250
申请日：2021-09-21
Applicant: Imec vzw , Katholieke Universiteit Leuven, KU LEUVEN R&D
Inventor： Ruoyu Feng , Andre Bourdoux , Hichem Sahli , Sofie Pollin
Abstract: A method is provided for indoor multipath ghosts recognition for a multiple-input-multiple-output radar with collocated antennas. The method includes the step of generating a two-dimensional Range-Doppler map for N number of consecutive radar data frames. The method further includes the step of applying a temporal clustering algorithm to the N number of consecutive radar data frames. Moreover, the method includes the step of applying a linear pattern extraction algorithm on the two-dimensional Range-Doppler map. In this context, the two-dimensional Range-Doppler map comprises detections from at least one target, at least one first-order ghost, and at least one second-order ghost with respect to one wall reflector.
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公开(公告)号：US20210190904A1
公开(公告)日：2021-06-24
申请号：US17127111
申请日：2020-12-18
Applicant: IMEC VZW
Inventor： Andre Bourdoux , Marc Bauduin
Abstract: A method of radar ranging comprises transmitting a digitally-modulated signal comprising successively in time, for each sequence in a plurality N of sequences, a plurality M+1 of repeats of said sequence, wherein each said sequence consists of a plurality Lc of digitally-modulated chips, wherein at least one sequence in the plurality of sequences is different from another sequence in said plurality of sequences; receiving a version of the digitally-modulated signal reflected scattered by one or more physical targets; for each sequence in the plurality of sequences, performing a preliminary target estimation; and using each said preliminary target estimation for all sequences in the plurality of sequences, performing a final target estimation.
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