公开(公告)号：US20240201322A1

公开(公告)日：2024-06-20

申请号：US18542168

申请日：2023-12-15

Applicant: THALES

Inventor： Adrien GILLIOT ,  Vincent CORRETJA ,  Stephane KEMKEMIAN ,  Nicolas LEGER

IPC: G01S7/295 ,  G01S7/41 ,  G01S7/53 ,  G01S7/539 ,  G01S13/42 ,  G01S13/89 ,  G01S15/42 ,  G01S15/89

CPC classification number: G01S7/295 ,  G01S7/411 ,  G01S7/53 ,  G01S7/539 ,  G01S13/428 ,  G01S13/89 ,  G01S15/42 ,  G01S15/89

Abstract: The invention relates to a target characterisation method for a detection device of multi-panel radar or sonar type with electronic scanning, comprising the steps of:



generating a plurality of pulses on a plurality of antenna panels (PE1, PE2, PE3) of the detection device according to a temporal and angular interleaving pattern, so as to perform a scan over all of the relative bearing domain of the detection device;
generating a plurality of detection maps, by the acquisition of a plurality of observations combined with one another by coherent or non-coherent integration of the echoes corresponding to the plurality of pulses, each detection map being obtained in a given direction (EL1, EL2, EL3) corresponding to the width of the main lobe of the antenna panel;
combining the detection maps so as to detect a presence of a target in the relative bearing domain of the detection device.

公开(公告)号：US20240361450A1

公开(公告)日：2024-10-31

申请号：US18641349

申请日：2024-04-20

Applicant: THALES

Inventor： Adrien GILLIOT ,  Vincent CORRETJA ,  Nicolas LEGER ,  Alexandre QUINQUIS ,  Rodolphe COTTRON

IPC: G01S13/90

CPC classification number: G01S13/9011 ,  G01S13/9017 ,  G01S13/9043 ,  G01S13/9076

Abstract: A detection system includes a phased array antenna having unitary radiating elements, the system being suitable for, in each cycle, successively directing, by way of the successive application of a first and a second determined phase law to the electrical signals for supplying power to the array antenna, the antenna radiation towards a first target area (Z1), then a second target area (Z2), which is separate from the first target area (Z1), and determining an image of each target area (Z1) on the basis of the echoes received from each of the first and second target areas.

公开(公告)号：US20240203239A1

公开(公告)日：2024-06-20

申请号：US18544718

申请日：2023-12-19

Applicant: THALES

Inventor： Adrien GILLIOT ,  Vincent CORRETJA

IPC: G08B29/18

CPC classification number: G08B29/185

Abstract: The present invention relates to a method for determining detection thresholds of a CFAR detection system of a sensor observing an environment, the CFAR detection system being provided with an estimator adapted to determine an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the method comprising the steps of:



estimation of parameters related to noises, in order to obtain a parameter vector,
computation of first detection thresholds so that, for all possible configurations of the parameter vector, the CFAR detection system operates at a predefined false alarm probability,
characterization of estimation errors of the estimator, and
correction of each first detection threshold in order to obtain second detection thresholds, the step of correcting taking into account the error parameters.

公开(公告)号：US20240203238A1

公开(公告)日：2024-06-20

申请号：US18537800

申请日：2023-12-13

Applicant: THALES

Inventor： Adrien GILLIOT ,  Vincent CORRETJA

IPC: G08B29/04

CPC classification number: G08B29/04

Abstract: A method for measuring the performance of a CFAR detection system of a sensor in observing an environment, the CFAR detection system being provided with an estimator suitable for determining an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the measurement method including estimating noise-related parameters, obtaining detection thresholds for the CFAR detection system, characterizing estimation errors of the estimator of the CFAR detection system, determining each detection threshold likely to be actually used by the CFAR system due to estimation errors, and calculating the performance of the CFAR detection system on the basis of the detection thresholds determined.