公开(公告)号：US20180337723A1

公开(公告)日：2018-11-22

申请号：US15973315

申请日：2018-05-07

Applicant: THALES

Inventor： Mathieu ARNAUD ,  Jean-François BOUTILLON ,  Jean-Luc ALMEIDA

IPC: H04B7/185 ,  H04B7/0404 ,  H01Q1/24

CPC classification number: H04B7/18517 ,  H01Q1/246 ,  H04B7/0404 ,  H04B7/18515 ,  H04B7/18534 ,  H04B7/18541 ,  H04W36/18

Abstract: A ground station with P antennas for individually tracking a satellite out of an origin first moving satellite S1 and a destination second moving satellite S2 comprises, connected in series, a multi-channel reception and processing device and a combination device with configurable diversity, and comprises a device for managing diversity and seamless handover of a reception communication link from the origin first satellite S1 to the destination second satellite S2. The diversity and seamless handover management device is configured to manage and coordinate the execution of a succession of k seamless and unitary antenna handovers Bi, and during each seamless and unitary handover Bi, control the antennas, the multi-channel reception and processing device and the combination device with configurable diversity by determining and sending to them respectively: satellite acquisition pointing commands, and commands for alignment in time and in phase of the P signals received as input of the multi-channel reception and processing device generated as a function of measurements of time and phase deviations of P-1 signals received as input in relation to the signal received as input taken as reference signal, and a setpoint for selection of the output processed signals to be combined as a function of the scheduling of the handover from the first diversity configuration C1 to the second diversity configuration C2 and as a function of measurements of qualities of the signals received as input of the reception and processing device.

公开(公告)号：US20180219613A1

公开(公告)日：2018-08-02

申请号：US15886762

申请日：2018-02-01

Applicant: THALES

Inventor： Mathieu ARNAUD ,  Jean-Luc ALMEIDA ,  David ARNAUD ,  Cédric BAUDOIN ,  Jacques DECROIX ,  Erwan CORBEL

IPC: H04B7/185 ,  H04L12/46 ,  H04N21/436

CPC classification number: H04B7/18526 ,  G06F1/14 ,  H04B7/18517 ,  H04L12/4633 ,  H04N21/43607

Abstract: A data transmission system in a communication network comprising a data modulator comprises: a first part at the level of the collection point part comprising: an NCR module taking account of an external absolute time reference to reconstitute a network clock, a transmitter module receiving the value of a time reference to be inserted into the data packet to be transmitted and transmitting to the NCR module an information item on an instant of synchronization for the receiver, a second part at the level of the radiofrequency part of a gateway comprising; a receiver module, a module for reconstructing a clock locally, a module for inserting a time reference into a data packet received by the receiver before transmission of the data via the satellite, the first part and the second part exchange encapsulated data.