公开(公告)号：US20030058834A1

公开(公告)日：2003-03-27

申请号：US10237956

申请日：2002-09-10

Applicant: EVOLIUM S.A.S.

Inventor： Antoine Soulie ,  Pierre Dupuy

IPC: H04J003/06 ,  H04B007/185 ,  H04L012/28

CPC classification number: H04B7/2693 ,  H04J3/0644

Abstract: The invention relates notably to a method for synchronizing terrestrial nodes comprising means for receiving information from a satellite belonging to a global navigation satellite system, said terrestrial nodes belonging to a terrestrial network, said method comprising the steps of: selecting terrestrial nodes which have to be synchronized with the same time reference, said terrestrial nodes forming an herein called synchronization zone; determining the clear sky view solid angle shared by said terrestrial nodes; acquiring by all terrestrial nodes a first time reference, herein called rough time reference, sent by a satellite viewed by said terrestrial nodes in said clear sky view solid angle; determining in said terrestrial network a common synchronization date for all terrestrial nodes; at said common synchronization date, acquiring by all terrestrial nodes a predefined sequence sent by a satellite viewed by said terrestrial nodes in said clear sky view solid angle; adjusting the time reference of each of said terrestrial nodes.

Abstract translation: 本发明特别涉及用于同步地面节点的方法，包括用于从属于全球导航卫星系统的卫星接收信息的装置，所述地面节点属于地面网络，所述方法包括以下步骤：选择必须是 与同一时间参考同步，所述地面节点形成这里称为同步区; 确定所述地面节点共享的清晰天空立体角; 由所有地面节点获取由所述地面节点以所述透明天空视角立体角观看的由卫星发送的第一时间参考（这里称为粗略时间参考）; 在所述地面网络中确定所有地面节点的公共同步日期; 在所述公共同步日期，由所有地面节点以所述透明天空视角立体角获取由所述地面节点观看的卫星发送的预定义序列; 调整每个所述地面节点的时间参考。