公开(公告)号：US20240027578A1

公开(公告)日：2024-01-25

申请号：US18357075

申请日：2023-07-21

Applicant: THALES

Inventor： Yoan VEYRAC ,  Pascal CORNIC ,  Renan LE GALL ,  Gonzague BERTIN DE LA HAUTIERE

IPC: G01S7/35 ,  G01S13/89 ,  G01S7/03

CPC classification number: G01S7/352 ,  G01S13/89 ,  G01S7/03

Abstract: The invention relates to a radar system comprising:



a frequency synthesizer, configured to generate a modulated local signal (Sf0+Δf0);
at least one frequency multiplier, configured to supply an intermediate-frequency local signal (Sf_inter+Δf_inter) to each emission channel (8) and to each reception channel, the intermediate-frequency local signal (Sf_inter+Δf_inter) being a fractional multiple of the modulated local signal (Sf0+Δf0);
a plurality of emission frequency transposition components, the emission frequency transposition components being synchronized with one another by the modulated local wave (Sf0+Δf0);
a plurality of reception frequency transposition components, the reception frequency transposition components being synchronized with one another by the modulated local signal (Sf0+Δf0), the reception channels being configured to demodulate the intermediate-frequency reception signal (Sf_inter_Rx+Δf_inter_Rx) using the intermediate-frequency local signal (Sf_inter+Δf_inter).

公开(公告)号：US20130234886A1

公开(公告)日：2013-09-12

申请号：US13789291

申请日：2013-03-07

Applicant: THALES

Inventor： Sebastien TRILLES ,  Gonzague BERTIN DE LA HAUTIERE ,  Mathias VAN DEN BOSSCHE

IPC: G01S19/21

CPC classification number: G01S19/21 ,  G01S19/40

Abstract: An adaptive method for estimating the electron content of the ionosphere comprises: collecting a set of measurements carried out by a plurality of beacons receiving radio frequency signals transmitted by a plurality of transmitting satellites; computing coordinates of the points of intersection between the transmission axis of the signals and a surface surrounding the Earth, and of a vertical total electron content determined at each of these points; computing a vertical total electron content for each of the nodes of an initial mesh of the surface; a statistical dispersion analysis of the vertical total electron content; a computation step making it possible to define a suitable statistical estimator, or a computation step making it possible to generate a suitable mesh of the surface; a statistical error analysis making it possible to select between a validation of the adaptation of the method and a stopping of the method.

Abstract translation: 用于估计电离层的电子含量的自适应方法包括：收集由多个发射卫星发射的接收射频信号的多个信标执行的一组测量; 计算信号的透射轴和围绕地球的表面之间的交点的坐标，以及在每个点确定的垂直总电子含量; 计算表面初始网格的每个节点的垂直总电子含量; 垂直总电子含量的统计色散分析; 计算步骤，使得可以定义合适的统计估计器，或计算步骤，使得可以生成表面的合适的网格; 统计误差分析使得可以在方法的适应性的验证和方法的停止之间进行选择。

公开(公告)号：US20220146657A1

公开(公告)日：2022-05-12

申请号：US17525851

申请日：2021-11-12

Applicant: THALES

Inventor： Yoan VEYRAC ,  Pascal CORNIC ,  Renan LE GALL ,  Gonzague BERTIN DE LA HAUTIERE

IPC: G01S13/42 ,  H01Q3/36 ,  G01S13/91 ,  G01S13/89

Abstract: The invention relates to a MIMO imaging radar system. The system comprises transmission channels (Ve1, VeM), reception channels (Vr1, VrN), and co-located radiating elements (ERe1, EReM, ERr1, ERrN) forming a two-dimensional antenna array. Each radiating element (ERe1, EReM, ERr1, ERrN) has a predefined instantaneous field of coverage. Each radiating element is formed by a plurality of p radiating sub-elements (SeElt1, SsEltp) distributed in at least one of the two dimensions of the antenna array. The radar comprises a plurality of electronic steering modules (MDe1, . . . , MDrN). Each electronic steering module is connected to one radiating element. Each steering module is configured to apply a steering command (Cmd) between all the radiating sub-elements (SeElt1, SsEltp) of a given radiating element. The steering command (Cmd) is identical from one radiating element to the next, so as to move the field of coverage of each radiating element in the same direction.

公开(公告)号：US20140035778A1

公开(公告)日：2014-02-06

申请号：US13954642

申请日：2013-07-30

Applicant: THALES

Inventor： Gonzague BERTIN DE LA HAUTIERE ,  Nidhal DAHMAN

IPC: G01S19/38

CPC classification number: G01S19/38 ,  G01S19/02 ,  G01S19/07

Abstract: A method of monitoring the integrity of stations for observing radio-navigation signals in a satellite based augmentation system SBAS comprises: defining a geographical zone comprising a plurality of observation stations, calculating, for each observation station of the said zone and for each line of sight between the said station and a satellite, the discrepancy between the theoretical pseudo-distance D and the measured pseudo-distance D′, calculating the average m of the said discrepancies D-D′ over the said zone for at least one satellite in visibility of the said zone, validating the integrity of at least one observation station of the said zone if the said discrepancy, for the said station and for at least one line of sight between the said station and a satellite, is less than or equal to the said average that is multiplied by a predetermined exclusion threshold, and excluding this observation station in the converse case.

Abstract translation: 一种用于监视基于卫星的增强系统SBAS中的用于观测无线电导航信号的站的完整性的方法包括：定义包括多个观测站的地理区域，对于所述区域的每个观测站和对于每个视线 在所述站和卫星之间，理论伪距离D和测量的伪距离D'之间的差异，计算所述区域上的所述区间上的所述差异的平均值，用于所述区域中的至少一个卫星的所述可见度 区域，如果所述站和所述站和卫星之间的至少一条视线的所述差异小于或等于所述平均值，则验证所述区域的至少一个观测站的完整性， 乘以预定的排除阈值，并且在相反的情况下排除该观测站。