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公开(公告)号：US09854546B2
公开(公告)日：2017-12-26
申请号：US14413498
申请日：2013-07-10
Applicant: Centre National d'Etudes Spatiales
Inventor： Thomas Grelier , Lionel Ries
CPC classification number: H04W56/001 , G01S19/02 , G01S19/21 , G01S19/24 , H04L7/04
Abstract: A global navigation satellite system (“GNSS”) positioning method is provided, based upon a GNSS radio signal that comprises a navigation message transmitted as a succession of data packets. Each data packet is present in the GNSS radio signal as a sequence of symbols obtained by application of a code preceded by a synchronization symbol header. The data packets are organized internally into data fields. At least certain data packets of the succession of data packets contain a synchronization bit field translated by application of the code into a synchronization symbol pattern.
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公开(公告)号：US10317537B2
公开(公告)日：2019-06-11
申请号：US15373651
申请日：2016-12-09
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Francois-Xavier Marmet , Lionel Ries , Jacques Beas-Garcia , Gaël Scot , Marion Aubault
IPC: H04W24/00 , G01S19/26 , G01S19/17 , A63B29/02 , G01S19/49 , G01S19/51 , G01S5/02 , G01S5/18 , G01S5/30 , H04W4/80
Abstract: The invention discloses a recovery assistance device for helping in rescuing victims of avalanches, earthquakes or boat capsizes. The device is capable of calculating a position from combinations of a previous position and distances to other devices. Different configurations are possible, with a basic configuration consisting of a smart phone having waveform generation capabilities, processing and GNSS receiving capabilities. The device is programmed to be used in a defined mission by an application. The device can also receive a number of add-ons as a battery add-on, a modem add-on, a sound wave generation add-on, antennas, and protection, possibly waterproof, if adequate. Devices of the same type can be carried by people to be rescued and rescuers. The device is therefore quite versatile and can increase significantly the efficiency of rescue teams in different use case scenarios.
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公开(公告)号：US09548534B2
公开(公告)日：2017-01-17
申请号：US13659691
申请日：2012-10-24
Applicant: THALES , CENTRE NATIONAL D'ETUDES SPATIALES (CNES)
Inventor： Thibaud Calmettes , Lionel Ries , Michel Monnerat
Abstract: In the field of active phase-control antennas, a method is provided for calibrating the phase center of an active antenna including a plurality of sub-elements able to receive a useful signal emitted by a satellite, the calibration being defined as a function of the reception characteristics of a reference signal at the level of each sub-element, the 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，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，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理论接收特性是已知的频带上发射。
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公开(公告)号：US10782414B2
公开(公告)日：2020-09-22
申请号：US15185993
申请日：2016-06-17
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Sébastien Rougerie , Marion Roudier , Lionel Ries , Laurent Lestarquit
IPC: G01S19/07 , G06F9/451 , G01S19/43 , G01S19/32 , G01S19/39 , G01S19/33 , G01S19/22 , G01S19/41 , G01S19/25 , G06F3/0484 , G06F8/38
Abstract: The invention discloses a receiver of GNSS positioning signals which has embedded computer logic to select between a first operating mode, which uses all available frequencies, and a second operating mode, which uses only part of the available frequencies but in combination with available correction data. The selection is based on a comparison of an index of quality of reception at the receiver and a computed or predicted precision/confidence level of the corrections. A plurality of corrections types are possible, including a type using a local model and a type using collaborative corrections. In some embodiments, a selection and/or a combination of a plurality of local models may be made to optimize the accuracy of the corrections.
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5.发明授权公开(公告)号：US10191158B2
公开(公告)日：2019-01-29
申请号：US15200186
申请日：2016-07-01
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES , M3 SYSTEMS
Inventor： Nabil Jardak , Willy Vigneau , François-Xavier Marmet , Lionel Ries
Abstract: A receiver, and associated process, for tracking a GNSS positioning signal comprising a carrier modulated by a subcarrier and a spreading code, the receiver comprising: at least one tracking loop configured to calculate a first pseudo range from said GNSS positioning signal, a first discrimination circuit (521) configured to calculate an ambiguous discriminator value from the subcarrier and the spreading code of said GNSS positioning signal, a calculation circuit (522) configured to calculate a value representative of a tracking error of said tracking loop, a second discrimination circuit (530) configured to select one of said ambiguous discriminator value and said value calculated by the calculation circuit, and to generate a first non-ambiguous discriminator value, an amplitude of which is based on an amplitude of the selected value, and a sign of which is a sign of said value calculated by the calculation circuit.
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Patent Agency Ranking
6.发明授权Method for determining a confidence indicator relating to the trajectory followed by a moving object 有权用于确定与运动对象后跟的轨迹有关的置信指标的方法公开(公告)号：US09588227B2
公开(公告)日：2017-03-07
申请号：US13763717
申请日：2013-02-10
Applicant: THALES , CENTRE NATIONAL D'ETUDES SPATIALES (CNES)
Inventor： Michel Monnerat , Lionel Ries
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。
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公开(公告)号：US09529070B2
公开(公告)日：2016-12-27
申请号：US14152235
申请日：2014-01-10
Applicant: Centre National d'Etudes Spatiales , M3SYSTEMS
Inventor： Willy Vigneau , Nabil Jardak , Philippe Paimblanc , Anchalee Puengnim , Lionel Ries
Abstract: A radionavigation signal tracking device comprises a first and a second tracking stage for radionavigation signals. The first tracking stage comprises a first carrier phase-locked loop. The latter produces a first error signal arising from a phase difference between the first carrier and its replica. The phase of the replica of the first carrier is adjusted with the first error signal. The second tracking stage comprises a second carrier phase-locked loop. The latter produces a second error signal arising from a difference between the first phase difference and a phase difference between the second carrier and the replica thereof. The phase of the replica of the second carrier is adjusted with the first and second error signals.
Abstract translation: 无线电导航信号跟踪装置包括用于无线电导航信号的第一和第二跟踪级。 第一跟踪级包括第一载波锁相环。 后者产生由第一载波和其副本之间的相位差产生的第一误差信号。 利用第一误差信号调整第一载波的副本的相位。 第二跟踪级包括第二载波锁相环。 后者产生由第一相位差和第二载波与其副本之间的相位差之间的差产生的第二误差信号。 利用第一和第二误差信号来调整第二载波的副本的相位。
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公开(公告)号：US10942281B2
公开(公告)日：2021-03-09
申请号：US16089814
申请日：2017-03-31
Applicant: CENTRE NATIONAL D'ETUDES SPATIALES
Inventor： Denis Laurichesse , François-Xavier Marmet , Lionel Ries
Abstract: The invention discloses an improved GNSS receiver which determines a location of the receiver by combining a first location determined either from the standard PVT of a multi-frequency receiver and/or from a positioning aid like a map matching algorithm, inertial navigation system, WiFi localization system or other, and a second location determined by integrating the velocity from the standard PVT. The combination is based on a duty cycle or a combination of the duty cycle with a weighting of the error budgets of the first position and the second location. The improved receiver is preferably based on a standard receiver with an add-on software module which receives and processes data transmitted from the standard receiver by, for example, NMEA messages. The improved receiver allows a determination of a more precise and smoother trajectory in a simple way.
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公开(公告)号：US09274227B2
公开(公告)日：2016-03-01
申请号：US14412787
申请日：2013-07-09
Applicant: Centre National D'Etudes Spatiales
Inventor： Thomas Grelier , Lionel Ries
Abstract: A global navigation satellite system (“GNSS”) positioning method is provided, based upon a GNSS radio signal that includes a navigation message transmitted as a sequence of frames, each frame being composed of a plurality of subframes, each of which contains a first set of ephemeris and clock correction data (DECH) sufficient for computing a satellite position and a satellite clock error. Each subframe furthermore contains a second set of DECH, more compact than the first set of DECH, but sufficient for computing satellite position and satellite clock error to a lesser degree of accuracy, at least two copies of the second set of DECH being present in each subframe, such that the timing difference between two consecutive copies does not exceed 70% of the subframe duration.
Abstract translation: 提供了一种基于GNSS无线电信号的全球导航卫星系统（“GNSS”）定位方法，该GNSS无线电信号包括作为一系列帧发送的导航消息，每个帧由多个子帧组成，每个子帧包含第一组 的星历和时钟校正数据（DECH），其足以计算卫星位置和卫星时钟误差。 每个子帧还包含比第一组DECH更紧凑的第二组DECH，但足够用于以较小的精确度计算卫星位置和卫星时钟误差，每个DECH中存在第二组DECH的至少两个副本 子帧，使得两个连续副本之间的定时差不超过子帧持续时间的70％。
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10.发明授权Method for estimating the direction of arrival of navigation signals at a receiver after reflection by walls in a satellite positioning system 有权用于在卫星定位系统中的墙壁反射之后估计接收机处的导航信号到达方向的方法公开(公告)号：US09229111B2
公开(公告)日：2016-01-05
申请号：US13763718
申请日：2013-02-10
Applicant: THALES , CENTRE NATIONAL D'ETUDES SPATIALES (CNES)
Inventor： Michel Monnerat , Lionel Ries
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。
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