公开(公告)号：US20150316656A1

公开(公告)日：2015-11-05

申请号：US14699275

申请日：2015-04-29

Applicant: THALES

Inventor： Thibaud CALMETTES ,  Guillaume CARRIE ,  Damien KUBRAK

IPC: G01S19/42

CPC classification number: G01S19/42 ,  G01S19/428

Abstract: A method is provided for determining the position of a satellite navigation system receiver in which use is made of a probabilistic weighting of the signals received, the weighting using a coefficient Ki, for each satellite of index i, the coefficient Ki being a product of factors each comprising a probability of existence of a disturbance, the coefficient Ki, for each satellite of index i, comprising at least one factor of the form (1−Pji)ai.

Abstract translation: 提供了一种用于确定卫星导航系统接收机的位置的方法，其中使用对所接收的信号的概率加权，对于索引i的每个卫星使用系数Ki的加权，系数Ki是因子的乘积 每个包括干扰存在的概率，索引i的每个卫星的系数Ki包括形式（1-Pji）ai的至少一个因子。

公开(公告)号：US20170227653A1

公开(公告)日：2017-08-10

申请号：US15414435

申请日：2017-01-24

Applicant: THALES

Inventor： Guillaume CARRIE ,  Benoît VAUTHERIN ,  Damien SERANT

IPC: G01S19/23

Abstract: A method for calibrating a multichannel GNSS receiver which does not require the use of a specific signal generator and which may be implemented directly on the basis of simple measurements taken from a receiver in operation comprises determining a first, broadband equalization filter which may be positioned at the output of the RF reception channels and at the input of the correlators in order to correct the mismatch between the various RF reception channels. The invention also consists of determining a second, narrowband equalization filter in order to correct residual phase and gain errors.

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：US20190293803A1

公开(公告)日：2019-09-26

申请号：US16357259

申请日：2019-03-18

Applicant: THALES ,  CENTRE NATIONAL D'ETUDES SPATIALES

Inventor： Guillaume CARRIE ,  Céline BERLAND ,  Franck BARBIERO

IPC: G01S19/22

Abstract: A method is provided for estimating the parameters of useful signal and multi-path signals originating from a radiolocation signal emitted by a satellite, a location device comprising at least two sensors able to receive the signal. The method comprises the steps of: correlating the signal received by the sensors with a local code by means of correlators, constructing, for each sensor, a sampled intercorrelation function intercorrelating the signal received with the local code, determining a spatio-temporal intercorrelation function on the basis of the concatenation of the intercorrelation functions obtained in the previous step for each sensor, estimating parameters representative of the useful signal and of the multi-path signals by applying a maximum likelihood algorithm, the representative parameters including at least one complex amplitude estimated independently for each sensor.