-
公开(公告)号：US11181605B2
公开(公告)日：2021-11-23
申请号：US16620410
申请日：2018-05-30
Applicant: THALES
Inventor： Benoît Gorisse , Daniel Jahan , Cédric Cornu
Abstract: The invention relates to a method and a device for estimating an angle of arrival of an incident radio signal in relation to a predetermined reference direction by using a set of N receiving paths comprising at least one directional antenna pointing in N different receiving directions, wherein only one sub-set of at least two receiving paths with adjacent antenna directions in said set of antennas delivers a measured power at reception.
The device comprises modules suitable for: determining a number of receiving paths delivering a measured power forming said sub-set, and a reference index corresponding to a first receiving path in a direction in which extends the set of antenna directions of said sub-set; selecting the measured powers and obtaining a value to attribute to the non-measured powers to form a completed power signal; by applying a discrete Fourier transform (DFT) to said completed power signal, calculating at least one transformed value among the transformed values corresponding to a first, second, and third frequency line of the DFT; and, using the transformed value(s), applying an estimator of the angle of arrival, depending on the reference index.-
公开(公告)号：US11555841B2
公开(公告)日：2023-01-17
申请号：US16762125
申请日：2018-09-07
Applicant: THALES
Inventor： Daniel Jahan , Thierry Mazeau , Stéphane Formont
Abstract: A device for the radio stimulation of an antenna includes at least one transmission sub-assembly formed by an array of radiating elements and an array of photoelectric receivers; as well as a generator that synthesizes a set of electrical signals that are intended to excite each radiating element. The electrical signals are transmitted to the transmission sub-assembly in the form of modulated light waves that are multiplexed to form a composite laser beam that illuminates the array of photoelectric receivers. Each of the photoelectric receivers receives a light wave. The array of photoelectric sensors and the array of radiating elements have substantially identical arrangements. Each photoelectric receiver is connected to a radiating element in its array at a position identical to the one that said receiver occupies within its own or a position symmetrical thereto.
-
公开(公告)号：US11489253B2
公开(公告)日：2022-11-01
申请号：US16760651
申请日：2018-09-07
Applicant: THALES
Inventor： Thierry Mazeau , Daniel Jahan , Stéphane Formont , Loïc Menager
Abstract: A stimulation device notably for testing radio reception devices is provided. It includes a signal generator delivering an amplitude-phase law for beam-forming purposes, transmitted in the form of a composite laser beam which illuminates a matrix of photodiodes of an emission subassembly with active modules separate from the generator, each wavelength of the beam carrying one of the signals defining the amplitude-phase law, intended for an active module. The device comprises means for measuring the orientation of the composite laser beam relative to the matrix of photodiodes of the emission subassembly and the distance traveled by the beam thereto, and correcting the phase law generated by the signal generator so as to neutralize the stray phase-shifts induced by these parameters on the signals transmitted to the emission subassembly.
-
公开(公告)号：US11181615B2
公开(公告)日：2021-11-23
申请号：US16348734
申请日：2017-11-08
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the onboard component in the signals received by said radar detector, where the onboard component corresponds to the mix of the direct component and the reflected component onboard, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating the pulses that belong to the selected classes.
-
公开(公告)号：US11592514B2
公开(公告)日：2023-02-28
申请号：US16763151
申请日：2018-11-16
Applicant: THALES
Inventor： Clémentine Bauche-Costes , Daniel Jahan , Nicolas Breuil , Vincent Guardia
Abstract: The present invention relates to an amplitude goniometer comprises P receiver channels, P being greater than or equal to 2, each receiver channel being identified by an index p, each receiver channel comprising an antenna coupled to a receiver chain followed by at least two digital receiver modules each comprising an analogue-to-digital conversion module associated with a respective sampling frequency, each sampling frequency not complying with the Shannon criterion and not being a multiple of another frequency, N being the number of frequencies, N being greater than or equal to 2, each frequency being referenced by an index n, the amplitude goniometry estimator working from the amplitudes of the signals originating from at least Q adjacent receiver channels of the P receiver channels, Q being at most equal to P, the sampling frequencies being associated with the analogue-to-digital conversion modules of the Q adjacent receiver channels.
-
Patent Agency Ranking
公开(公告)号：US11280877B2
公开(公告)日：2022-03-22
申请号：US16348836
申请日：2017-11-10
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the external echo component in the signals received by the radar detector, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating the pulses that belong to the selected classes.
-
公开(公告)号：US11163040B2
公开(公告)日：2021-11-02
申请号：US16349215
申请日：2017-11-10
Applicant: THALES
Inventor： Daniel Jahan , Jean-Michel Quellec , Jean-Paul Artis , Daniel Christien
Abstract: The invention relates to a method for testing the electromagnetic compatibility of a radar detector with at least one onboard pulse signal transmitter, wherein said radar detector and each onboard transmitter are part of the same platform, by means of eliminating the onboard component in the signals received by said radar detector, where the onboard component corresponds to the mix of the direct component and the reflected component onboard, said method comprising a training phase allowing the detected pulses to be divided into classes, grouping together the pulses for which at least two characteristics have a common range of values, and a phase of eliminating, the pulses that belong to the selected classes.
-
8.发明授权公开(公告)号：US10768269B2
公开(公告)日：2020-09-08
申请号：US16102611
申请日：2018-08-13
Applicant: THALES
Inventor： Daniel Jahan , Romain Giacometti , Cédric Cornu
Abstract: Methods for locating electromagnetic pulse emission sources in an environment including reflectors is disclosed. In one aspect, the method includes receiving, by a detector, for each source to be located, at least one same emitted pulse, received directly from said source and received by reflection on one of the reflectors. The method also includes identifying direct subsets and reflected subsets, regrouping by pairs of direct subsets with reflected subsets, calculating, for each pair, differences in dates of arrival between the pulses of the reflected subset and the pulses of the direct subset of the pair, and determining the distance of each source from the detector from calculated differences in dates of arrival of the pulses of each pair.
-
公开(公告)号：US10976401B2
公开(公告)日：2021-04-13
申请号：US15764121
申请日：2016-09-27
Applicant: THALES
Inventor： Jean-Michel Quellec , Daniel Christien , Daniel Jahan
Abstract: The invention relates to a method for determining features of an electromagnetic wave received by a reception system (22), the reception system (22) comprising at least two reception channels (13), each reception channel (13) comprising an antenna (21) and a reception chain (14), each reception chain (14) being capable of delivering a value representative of the power delivered by the corresponding antenna (21) after reception of the wave by the reception system (22), the features comprising at least the direction of arrival of the received wave, the method comprising a step of providing a measurement vector, the method further comprising the following steps: comparing the measurement vector to calibration vectors, and determining features of the received wave from the result of the comparison.
-
公开(公告)号：US10914812B2
公开(公告)日：2021-02-09
申请号：US16001950
申请日：2016-12-15
Applicant: THALES
Inventor： Daniel Jahan , Romain Giacometti , Cédric Cornu
Abstract: The present invention relates to a method for locating sources emitting electromagnetic pulses, each source belonging to a carrier platform, the method comprising the following steps: receiving, by a detector, for each source to be located, at least one same emitted pulse, received directly and received by reflection on the carrier platform of another source, measuring the arrival direction, the arrival date and at least one invariant characteristic of each received pulse. The method further comprises the following steps: grouping together a first pair of pulses and a second pair of pulses, calculating the difference of dates of arrival between the pulses of each pair, determining the direction and the distance of each source from the detector from calculated differences of dates of arrival of the pulses of each pair.
-
-
-
-
-
-
-
-
-
Search Results
11
records
(took 0.015 seconds)
