公开(公告)号：US20190113594A1

公开(公告)日：2019-04-18

申请号：US16160904

申请日：2018-10-15

Applicant: THALES ,  CENTRE NATIONAL D'ETUDES SPATIALES

Inventor： Thibaud CALMETTES ,  Benoît VAUTHERIN ,  Yoan GREGOIRE ,  Christelle ILIOPOULOS

IPC: G01S1/02 ,  G01S1/04

Abstract: A method for determining a phase bias in the signal transmitted by at least one of the radiating elements of an active antenna on the ground emitting signals into space using a space-division multiple access SDMA method, implementing a step, for each reference receiver, of comparing, to a threshold, the difference between the value of a measurement of the power received by each reference receiver and the sum, out of the radiating elements of the subset beamforming in the direction of the reference receiver, of the differences between the equivalent isotropically radiated power in the direction of the reference receiver and the free-space path loss of each radiating element of the subset.

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.