公开(公告)号：US10585183B2

公开(公告)日：2020-03-10

申请号：US15649374

申请日：2017-07-13

Applicant: THALES

Inventor： Pascal Cornic ,  Yves Audic ,  Stéphane Kemkemian

IPC: G01S13/60 ,  G01S13/46 ,  G01S13/93 ,  G01S13/931 ,  G01S13/00

Abstract: Radar equipped with a transmission antenna array and with a reception antenna array is provided, the measurement of the height h2 is obtained by estimating the frequency of at least one time-dependent amplitude modulation produced on the reception antenna array, the modulation generated by the interference of the signals received directly from the target and the signals received after reflection on the ground, on the basis of the signals transmitted by the transmission antenna array.

公开(公告)号：US10422858B2

公开(公告)日：2019-09-24

申请号：US15491871

申请日：2017-04-19

Applicant: THALES

Inventor： Vincent Corretja ,  Gilles Guerrini ,  Thierry Sfez ,  Richard Montigny ,  Stéphane Kemkemian ,  Jean-Marc Chabroux

IPC: G01S7/41 ,  G01S7/292 ,  G01S13/10 ,  G01S13/52 ,  G01S7/40 ,  G08G3/00 ,  G08G5/00 ,  G05D1/00

Abstract: A detection method for a given mission comprises: a phase of analyzing the environment, wherein phase elements of influence on the sea clutter perceived by the radar are sought and stored in memory; a phase of updating the path to be followed by the carrier depending on the requirements of the mission and the elements of influence issued from the result of the analyzing phase, the path to be followed decreasing the power of the clutter received by the radar when the antenna is pointing towards a search zone liable to contain a target; the phases being repeated throughout the mission.

公开(公告)号：US11914019B2

公开(公告)日：2024-02-27

申请号：US17107604

申请日：2020-11-30

Applicant: THALES

Inventor： Stéphane Kemkemian ,  Vincent Corretja ,  Sabrina Machhour

IPC: G01S13/04

CPC classification number: G01S13/04

Abstract: The invention relates to a method for determining the detection threshold of a radar suited to a given environment, characterized in that it comprises at least: a step in which a set of statistical quantities characterizing said environment is selected; a step in which a set of functions is defined, each of said functions giving an intermediate detection threshold that is a function of statistical quantities taken from a subset of said set of statistical quantities; a step of combination of said intermediate detection thresholds, said detection threshold being the result of said combination.

公开(公告)号：US11506751B2

公开(公告)日：2022-11-22

申请号：US16692970

申请日：2019-11-22

Applicant: THALES

Inventor： Pierre-Albert Breton ,  Vincent Corretja ,  Richard Montigny ,  Stéphane Kemkemian

IPC: G01S7/292 ,  G01S13/91 ,  G01S13/56 ,  G01S13/72

Abstract: Upon each new detection, called pivot detection, by a radar system, the method includes the steps consisting of: grouping together, with the pivot detection, grouped detections, defined as detections that belong to a sweep preceding the sweep of the pivot detection and that have a non-nil probability according to a grouping criterion; filtering the grouped detections so as to keep only detections that are kinematically strictly coherent with the pivot detection, by: initializing a histogram, each dimension of which is a temporal variation of a coordinate measured by the radar system; computing a potential value interval for each coordinate of the pivot detection and each grouped detection; computing a minimum temporal variation and a maximum temporal variation for the or each coordinate from potential value intervals of the pivot detection and each grouped detection; incrementing the set of classes of the histogram whose index along each dimension is located between the computed minimum and maximum temporal variations; and detecting a target once at least one class of the histogram reaches a predefined value.

公开(公告)号：US09667197B2

公开(公告)日：2017-05-30

申请号：US14764148

申请日：2014-02-27

Applicant: THALES ,  INSTITUT POLYTECHNIQUE DE BORDEAUX ,  UNIVERSITE DE BORDEAUX ,  CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE

Inventor： Patrick Garrec ,  Eric Kerherve ,  Pascal Cornic ,  Stéphane Kemkemian ,  Nejdat Demirel ,  Yves Mancuso

IPC: H03F1/14 ,  H03F3/68 ,  H03F1/02 ,  H03F3/21 ,  H03F3/72 ,  H03F3/45 ,  H03F3/19

CPC classification number: H03F1/0288 ,  H03F3/19 ,  H03F3/211 ,  H03F3/45089 ,  H03F3/72 ,  H03F2200/301 ,  H03F2200/537 ,  H03F2200/541 ,  H03F2203/21109 ,  H03F2203/45731

Abstract: An input signal amplification system comprises at least two different means of amplifying input signals in order to obtain amplified signals. It also comprises at least one means of summing amplified signals, and dynamic means of activating or deactivating one or more of the amplifying means based on input signals.

公开(公告)号：US20130234878A1

公开(公告)日：2013-09-12

申请号：US13774770

申请日：2013-02-22

Applicant: THALES

Inventor： Stéphane Kemkemian ,  Jean-Paul Artis ,  Jean-Michel Quellec

IPC: G01S13/06 ,  G01S7/36

CPC classification number: G01S13/06 ,  G01S7/285 ,  G01S7/2921 ,  G01S7/36 ,  G01S13/103 ,  G01S13/282

Abstract: A system and method of radar location comprises radar signal emission means, an emitted pulse of duration T1 and index i starting at instant T2(i); means receiving reflected radar signals; means determining correlation between reconstruction of an emitted pulse and signal received during the time interval between T2(i)+2*T1 and T2(i+1). The means determining a correlation can reconstruct a set, of at least one truncated pulse j of duration T3(j), less than T1, corresponding to the final part of said emitted pulse, said truncated pulses having increasing respective durations, determining at least one first correlated signal j by correlation of said truncated pulse j and signal received during time interval between T2(i)+T1 and T2(i)+T1+T3(j) and determining a second signal, based on first correlated signals j, by copying the time interval, of said correlated signal j, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1), onto the time interval, of said second signal, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1).

Abstract translation: 雷达位置的系统和方法包括雷达信号发射装置，从时刻T2（i）开始的持续时间T1和索引i的发射脉冲; 表示接收反射雷达信号; 意味着确定发射脉冲的重建与在T2（i）+ 2 * T1和T2（i + 1）之间的时间间隔期间接收到的信号之间的相关性。 确定相关性的装置可以重建与所述发射脉冲的最后部分相对应的小于T1的持续时间T3（j）的至少一个截断脉冲j的集合，所述截断脉冲具有增加的相应持续时间，确定至少一个 第一相关信号j通过所述截断脉冲j的相关和在T2（i）+ T1和T2（i）+ T1 + T3（j）之间的时间间隔期间接收的信号相关，并且基于第一相关信号j，由 将T2（i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）之间的所述相关信号j的时间间隔复制到所述第二信号的时间间隔T2 （i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）。

公开(公告)号：US11262444B2

公开(公告)日：2022-03-01

申请号：US16404610

申请日：2019-05-06

Applicant: THALES

Inventor： Clément Magnant ,  Vincent Corretja ,  Julien Petitjean ,  Stéphane Kemkemian

IPC: G01S13/72

Abstract: A method includes at least a preliminary step of storing a set of tracking algorithms as a function of types of targets and of environments, each tracking algorithm being a function of a type of target in a given environment; a step of detecting signals backscattered by the targets resulting in primary detections being obtained; the detection step being followed, for each detected target: by a step: of characterizing the detected target into types of target on the basis of the primary detections; and of analysing the environment of the targets in order to determine in which given environment each detected target is located; a step of adapting the tracking to each detected target, the adapting being completed by selecting the tracking algorithm as a function of the type of target to which the target belongs and of the given environment in which it is located.

公开(公告)号：US11668813B2

公开(公告)日：2023-06-06

申请号：US15734667

申请日：2019-06-13

Applicant: THALES

Inventor： Pierre-Albert Breton ,  Vincent Corretja ,  Richard Montigny ,  Stéphane Kemkemian

IPC: G01S13/88 ,  G01B15/02

CPC classification number: G01S13/88 ,  G01B15/02 ,  G01S13/882

Abstract: A method for determining wave height by means of a radar carried by an aircraft, the method implementing the following steps: a first step of pointing the antenna of the radar; a second step of determining the clutter acquisition plan according to the altitude of the aircraft; a third step of determining, for each clutter zone defined by the acquisition plan, two Doppler parameters PARA1 and PARA2 characterising the zone as a whole; a fourth step of calculating the average values of the parameters PARA1 and PARA2 over all of the zones in question; and a fifth step of estimating the wave height from the averages of the parameters PARA1 and PARA2. The wave height estimated in this way is transmitted to the aircraft and used to determine the conditions for the water landing of the aircraft.

公开(公告)号：US09035824B2

公开(公告)日：2015-05-19

申请号：US13774770

申请日：2013-02-22

Applicant: Thales

Inventor： Stéphane Kemkemian ,  Jean-Paul Artis ,  Jean-Michel Quellec

IPC: G01S13/06 ,  G01S7/285 ,  G01S7/36 ,  G01S7/292 ,  G01S13/10 ,  G01S13/28 ,  G01S13/00 ,  G01S7/00

CPC classification number: G01S13/06 ,  G01S7/285 ,  G01S7/2921 ,  G01S7/36 ,  G01S13/103 ,  G01S13/282

Abstract: A system and method of radar location comprises radar signal emission means, an emitted pulse of duration T1 and index i starting at instant T2(i); means receiving reflected radar signals; means determining correlation between reconstruction of an emitted pulse and signal received during the time interval between T2(i)+2*T1 and T2(i+1). The means determining a correlation can reconstruct a set, of at least one truncated pulse j of duration T3(j), less than T1, corresponding to the final part of said emitted pulse, said truncated pulses having increasing respective durations, determining at least one first correlated signal j by correlation of said truncated pulse j and signal received during time interval between T2(i)+T1 and T2(i)+T1+T3(j) and determining a second signal, based on first correlated signals j, by copying the time interval, of said correlated signal j, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1), onto the time interval, of said second signal, between T2(i)+T1+T3(j) and T2(i)+T1+T3(j+1).

Abstract translation: 雷达位置的系统和方法包括雷达信号发射装置，从时刻T2（i）开始的持续时间T1和索引i的发射脉冲; 表示接收反射雷达信号; 意味着确定发射脉冲的重建与在T2（i）+ 2 * T1和T2（i + 1）之间的时间间隔期间接收到的信号之间的相关性。 确定相关性的装置可以重建与所述发射脉冲的最后部分相对应的小于T1的持续时间T3（j）的至少一个截断脉冲j的集合，所述截断脉冲具有增加的相应持续时间，确定至少一个 第一相关信号j通过所述截断脉冲j的相关和在T2（i）+ T1和T2（i）+ T1 + T3（j）之间的时间间隔期间接收的信号相关，并且基于第一相关信号j由第 将T2（i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）之间的所述相关信号j的时间间隔复制到所述第二信号的时间间隔T2 （i）+ T1 + T3（j）和T2（i）+ T1 + T3（j + 1）。