公开(公告)号：US20130106656A1

公开(公告)日：2013-05-02

申请号：US13659538

申请日：2012-10-24

Applicant: THALES ,  CENTRE NATIONAL D'ETUDES SPATIALES (CN

Inventor： Thibaud CALMETTES ,  Michel MONNERAT ,  Lionel RIES

IPC: G01S1/08

CPC classification number: G01S1/08 ,  G01S1/68 ,  G01S5/12 ,  H04B7/18513

Abstract: A method is provided for demodulating a signal carrying a message transmitted by a terrestrial beacon, executed by a system comprising a constellation of satellites suitable for detecting said signal and for repeating it towards receiving stations on the ground, and an analysis module suitable for receiving signals from said stations. Each receiving station transmits the signals that it receives from the satellite to the analysis module, said module realigning said signals in frequency and/or in time relative to one another, combining the realigned signals to generate a synthetic signal having an enhanced signal-to-noise ratio, and determining the content of said message and/or the modulation parameters of said synthetic signal. The method applies notably to the accurate and reliable location of distress beacons by a satellite system.

Abstract translation: 提供了一种用于解调携带由地面信标发送的消息的信号的方法，该信号由包括适合于检测所述信号的卫星星座并将其重复到接地站的接收站的系统执行，以及适于接收信号的分析模块 从所述车站。 每个接收站将其从卫星接收的信号发送到分析模块，所述模块以频率和/或相对于彼此的时间重新对准所述信号，组合重新排列的信号以产生具有增强的信噪比的合成信号， 噪声比，以及确定所述消息的内容和/或所述合成信号的调制参数。 该方法特别适用于卫星系统对遇险信标的准确可靠的位置。

公开(公告)号：US20130106654A1

公开(公告)日：2013-05-02

申请号：US13659691

申请日：2012-10-24

Applicant: THALES ,  CENTRE NATIONAL D'ETUDES SPATIALES (CN

Inventor： Thibaud CALMETTES ,  Lionel RIES ,  Michel MONNERAT

IPC: H04B7/185 ,  G01S19/23

CPC classification number: H01Q3/267 ,  G01S19/23

Abstract: In the field of active phase-control antennas, a method is provided for calibrating the phase centre of an active antenna comprising a plurality of sub-elements able to receive a useful signal emitted by a satellite, said calibration being defined as a function of the reception characteristics of a reference signal at the level of each sub-element, said reference signal being emitted by the same satellite on a frequency band substantially equal to the frequency band of the useful signal and whose theoretical reception characteristics are known.

Abstract translation: 在有源相位控制天线领域，提供了一种用于校准有源天线的相位中心的方法，该有源天线包括能够接收由卫星发射的有用信号的多个子元件，所述校准被定义为 在每个子元件的电平处的参考信号的接收特性，所述参考信号由相同的卫星在基本上等于有用信号的频带并且其理论接收特性已知的频带上发射。

公开(公告)号：US20150268354A1

公开(公告)日：2015-09-24

申请号：US14664489

申请日：2015-03-20

Applicant: THALES

Inventor： Michel MONNERAT ,  Damien SERANT

IPC: G01S19/45

CPC classification number: G01S19/45 ,  G01S19/20 ,  G01S19/425

Abstract: In the field of satellite geolocation, a geopositioning method with a trust index is implemented by a geopositioning terminal. According to the method, the positioning of the terminal is estimated by geopositioning satellites and the trust index is provided by comparison with at least one pseudo-distance measurement recorded by at least one additional geopositioning satellite, which is different from those used to compute the position of the terminal.

Abstract translation: 在卫星地理定位领域，具有信任度指标的地理定位方法由地理定位终端实现。 根据该方法，通过地理位置卫星来估计终端的定位，并且通过与由至少一个附加地理定位卫星记录的至少一个伪距离测量值进行比较来提供信任指标，所述至少一个附加地理定位卫星与用于计算位置的那些不同 的终端。

公开(公告)号：US20190137614A1

公开(公告)日：2019-05-09

申请号：US16173428

申请日：2018-10-29

Applicant: THALES

Inventor： Thibaud CALMETTES ,  Guillaume CARRIE ,  Michel MONNERAT

IPC: G01S13/12 ,  G01S13/04 ,  G01S7/292 ,  G01S7/41 ,  G01S13/02

Abstract: An iterative method for detecting is provided, with at least one receiver satellite in orbit, a target possessing reflective properties that are different from those of the area in which the target is found, by GNSS reflectometry, wherein the reflected GNSS signals are received by an active antenna of the receiver satellite comprising a plurality of antenna elements, the method comprising a step of determining assumed positions of the target, for which positions it is desired to detect the target, and, forming beams and tracking GNSS signals in accordance with these assumptions.

公开(公告)号：US20150269845A1

公开(公告)日：2015-09-24

申请号：US14664427

申请日：2015-03-20

Applicant: THALES

Inventor： Thibaud CALMETTES ,  Michel MONNERAT ,  Damien SERANT

IPC: G08G1/00 ,  G01S19/03 ,  G05D1/02

CPC classification number: G08G1/22 ,  B60W2050/046 ,  B60W2550/402 ,  G01S19/03 ,  G05D1/0293

Abstract: A method is implemented by computer for the management of a convoy comprising at least two vehicles, each of the at least two vehicles comprising satellite positioning means and vehicle-to-vehicle communication means, the method comprising the determination of the relative positioning of the vehicles, the determination comprising the measurement of the propagation time of a signal between vehicles by the communication means, the clocks associated with the communication means being synchronized via satellite positioning means at a reference clock time. Developments comprise the communication between the vehicles of various data (e.g. measurement uncertainties, signal-to-noise ratios, residual values), the determination of absolute locations, the use of an SBAS-type system, the use of differential GPS, the use of Doppler measurements for the turns or even the exclusion of a failing satellite. A computer program product and associated systems are described.

Abstract translation: 一种用于管理包括至少两个车辆的车队的方法，所述至少两个车辆中的每一个包括卫星定位装置和车对车辆通信装置，所述方法包括确定车辆的相对定位 所述确定包括通过通信装置测量车辆之间的信号的传播时间，与通信装置相关联的时钟在基准时钟时间通过卫星定位装置同步。 发展包括各种数据的车辆之间的通信（例如测量不确定性，信噪比，残余值），绝对位置的确定，SBAS型系统的使用，差分GPS的使用，使用 多普勒测量的转弯甚至排除故障卫星。 描述了计算机程序产品和相关系统。

公开(公告)号：US20170188322A1

公开(公告)日：2017-06-29

申请号：US15379335

申请日：2016-12-14

Applicant: THALES

Inventor： Thibaud CALMETTES ,  Michel MONNERAT

IPC: H04W56/00 ,  H04B1/707

CPC classification number: H04W56/002 ,  G01S5/0231 ,  G01S19/00 ,  H04B1/707 ,  H04B7/18513 ,  H04W84/06

Abstract: A satellite communications network, methods of sending, receiving and repetition, and the associated items of equipment wherein the transmission of a signal between a sending station and a receiving station is relayed by a plurality of satellites visible in common to both these stations are provided. The position of the sending station, the receiving station and the satellites relaying the signal is known by at least one of these items of equipment, which is further configured to separate the signals relayed by the satellites, and to compute, for each of the signals, at least one shift introduced by the propagation of the signal, on the basis of the position of the sending station, of the receiving station, and of the satellite by which it is transmitted, and then to apply the inverse shifts to the signal.

公开(公告)号：US20140125521A1

公开(公告)日：2014-05-08

申请号：US13763718

申请日：2013-02-10

Applicant: Thales ,  Centre National D'etudes Spatiales (CNES)

Inventor： Michel MONNERAT ,  Lionel RIES

IPC: G01S19/22

CPC classification number: G01S19/22 ,  G01S19/42

Abstract: A method includes estimating a position of a receiver, aboard a moving object, on the basis of the navigation signals emitted by satellites received by an antenna in an antenna array placed on the moving object, and using a three-dimensional geographical map to deduce, geometrically, on the basis of the position of the receiver and of a ray casting starting from the receiver, the number of paths reflected on walls of buildings present in a scene corresponding to an environment surrounding the receiver. The determined number of reflected paths is used to initialize an algorithm for estimating angles of arrival of multi-paths to deduce therefrom angles of arrival of the paths reflected on the walls before reaching the receiver. Optionally, the method can comprise making it possible to bound the distance information error due to a multi-path to render the estimation of direction of arrival of the signals more efficacious.

Abstract translation: 一种方法包括：基于由放置在移动物体上的天线阵列中的天线接收的卫星发射的导航信号，以及使用三维地理图来推断移动物体上的接收器的位置， 基于接收器的位置和从接收器开始的射线铸造的几何尺寸，反映在与围绕接收器的环境相对应的场景中的建筑物的墙壁上的路径的数量。 确定的反射路径数用于初始化用于估计多路径的到达角度的算法，以便在到达接收器之前从其推导反映在壁上的路径的到达角度。 可选地，该方法可以包括使由于多路径限制距离信息误差成为可能使得对信号的到达方向的估计更有效的可能性。

公开(公告)号：US20130207837A1

公开(公告)日：2013-08-15

申请号：US13763717

申请日：2013-02-10

Applicant: Thales ,  Centre National D'etudes Spatiales (CNES)

Inventor： Michel MONNERAT ,  Lionel RIES

IPC: G01S19/40

CPC classification number: G01S19/40 ,  G01S19/22 ,  G01S19/49 ,  G01S19/50

Abstract: A method includes estimating the position of the moving object on the basis of the reception of navigation signals emitted by a constellation of satellites, the navigation signals being modulated by a code and the receiver comprising a local replica of the code. The determination of the confidence indicator consists in estimating a speed of displacement of the receiver over an identified trajectory segment, deducing therefrom a Doppler delay function corresponding to the motion of the receiver, in correcting the auto-correlation function of the GNSS navigation signal received from each satellite of the constellation by means of the delay function, in comparing the corrected auto-correlation function with a theoretical auto-correlation function by applying a quadratic criterion corresponding to the confidence indicator.

Abstract translation: 一种方法包括基于由卫星星座发射的导航信号的接收来估计移动物体的位置，导航信号由码进行调制，接收机包括代码的本地副本。 置信指标的确定在于估计接收机在所识别的轨迹段上的位移速度，从而从其中推导出与接收机的运动对应的多普勒延迟函数，以校正从GNSS接收的GNSS导航信号的自相关函数 通过延迟函数，通过应用与置信度指标对应的二次标准，将校正的自相关函数与理论自相关函数进行比较，从而构成星座的每个卫星。