公开(公告)号：US20240045074A1

公开(公告)日：2024-02-08

申请号：US18267073

申请日：2021-12-14

Applicant: THALES

Inventor： Denis BOUVET ,  Roland BONEL ,  Christian MEHLEN

IPC: G01S19/20

CPC classification number: G01S19/20

Abstract: A consolidation method implementing: a first sensor able to determine a computed position {circumflex over (x)}(1) of the aircraft, a characterization of the positioning error and a horizontal protection level HPL(1), a second sensor, with a different design and with a design level equivalent to the first sensor, able to determine a second position {circumflex over (x)}(2) of the aircraft and a characterization of the positioning error of the second position {circumflex over (x)}(2), and comprising the steps: a. estimating a horizontal deviation between the computed position {circumflex over (x)}(1) and the second position {circumflex over (x)}(2), b. comparing the horizontal deviation with a detection threshold, c. if the horizontal deviation is below the detection threshold, computing an additional horizontal protection level HPL(MON) of the computed position {circumflex over (x)}(1), d. estimating a consolidated horizontal protection level HPL(CON), e. comparing the consolidated horizontal protection level HPL(CON) and a horizontal alert limit HAL, f. if the consolidated horizontal protection level HPL(CON) is less than the horizontal alert limit HAL, horizontally confirming the computed position {circumflex over (x)}(1).

公开(公告)号：US20210048536A1

公开(公告)日：2021-02-18

申请号：US16993006

申请日：2020-08-13

Applicant: THALES

Inventor： Nicolas MARTIN ,  Denis BOUVET ,  Christian MEHLEN

IPC: G01S19/23 ,  G01S19/30 ,  G01S19/39

Abstract: This detection method is carried out after a phase for acquiring a navigation signal during a convergence phase and comprises at least one of the following steps: —determining a plurality of pilot channel periodic correlations and a plurality of data channel periodic correlations, and determining a first value as a function of these periodic correlations; —determining a plurality of pilot channel partial correlations, and determining a second value as a function of these partial correlations; —determining a plurality of shifted pilot channel correlations, and determining a third value as a function of these shifted pilot channel correlations.
The convergence phase further comprises the step for determining a wrong synchronization when at least one of the first value, the second value, and the third value exceeds a predetermined threshold.

公开(公告)号：US20240071235A1

公开(公告)日：2024-02-29

申请号：US18454351

申请日：2023-08-23

Applicant: THALES

Inventor： Jean-Pierre ARETHENS ,  Denis BOUVET

IPC: G08G5/00 ,  G01S19/07

CPC classification number: G08G5/0047 ,  G01S19/072

Abstract: A method for selecting at least one satellite navigation service provider from a plurality of predetermined providers, the selection method being computer-implemented and comprising: a step for receiving a geographical position; a step of determining an indication relating to the authorization of use of at least one provider of the plurality of predetermined providers, the determining step being implemented by at least one artificial neural network (24) associated with said provider, an input variable of the artificial neural network (24) being the geographical position, an output variable of the artificial neural network (24) being said indication; a step for selecting at least one provider for satellite navigation of an aircraft.

公开(公告)号：US20240027627A1

公开(公告)日：2024-01-25

申请号：US18265955

申请日：2021-12-09

Applicant: THALES

Inventor： Denis BOUVET ,  Jean-Pierre ARETHENS

IPC: G01S19/20 ,  G01S19/33

CPC classification number: G01S19/20 ,  G01S19/33

Abstract: A localization method, implemented in a satellite system includes at least a first constellation associated with a probability of occurrence of multiple failures lower than a given integrity risk, where the method may advantageously comprise the following steps implemented by a radioelectric device: receive a plurality of navigation signals; select failure modes to be monitored other than the multiple failures of the first constellation; determine a navigation solution and a plurality of navigation sub-solutions; calculate, for each navigation sub-solution, one or more corresponding detection thresholds; calculate one or more protection levels.

公开(公告)号：US20170227652A1

公开(公告)日：2017-08-10

申请号：US15427595

申请日：2017-02-08

Applicant: THALES AVIONICS

Inventor： Nicolas MARTIN ,  Denis BOUVET

IPC: G01S19/23

Abstract: A method for determining a wrong synchronization of a receiver with a satellite, associated receiver and computer program product, is implemented after the acquisition phase and includes the following steps: generating first and second test signals; for each correlation interval, determining a first prompt correlator corresponding to the correlation value between the received signal and the first test signal, and a second prompt correlator corresponding to the correlation value between the received signal and the second test signal; determining first and second energy values corresponding to the energy of the first and second correlators, respectively; determining a wrong synchronization indicator based on the difference between the first and second energy values; and detecting a wrong synchronization based on this indicator.