-
公开(公告)号：US12025729B2
公开(公告)日：2024-07-02
申请号：US17527796
申请日：2021-11-16
Applicant: Imec vzw
Inventor： Marc Bauduin , Andre Bourdoux
CPC classification number: G01S7/354 , G01S7/358 , G01S13/325 , G01S13/58
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.-
公开(公告)号：US20200003866A1
公开(公告)日：2020-01-02
申请号：US16450885
申请日：2019-06-24
Applicant: IMEC vzw
Inventor： Marc Bauduin , Andre Bourdoux
IPC: G01S7/35
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.
-
公开(公告)号：US11641303B2
公开(公告)日：2023-05-02
申请号：US16578156
申请日：2019-09-20
Applicant: IMEC vzw
Inventor： Andre Bourdoux , Marc Bauduin , Claude Desset
Abstract: An orthogonal frequency-division multiplexing (OFDM) based radar signal comprising Q sub-carriers adapted to push an IQ-imbalance component out of a subset of L contiguous range bins of range profiles derived out of the received radar signal and wherein L is at most Q/2, is disclosed.
-
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.
-
Patent Agency Ranking
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.
-
公开(公告)号：US12111416B2
公开(公告)日：2024-10-08
申请号：US17526627
申请日：2021-11-15
Applicant: Imec vzw
Inventor： Marc Bauduin , Andre Bourdoux
CPC classification number: G01S7/354 , G01S7/358 , G01S13/325 , 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.
-
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.
-
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.
-
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.
-
-
-
-
-
-
-
-
Search Results
9
records
(took 0.016 seconds)
