| 摘要 |
<p>The invention relates to a time-dependent method of synchronizing an orthogonal frequency evasion waveform. The method comprises for each station a step of acquiring and keeping the time, the time thus determined being a locally estimated time at each station, and a step of acquiring and keeping the Transit Time between the station and a satellite, the transit time being estimated locally. The moments of transmission by said station are determined as a function of the locally estimated time and the locally estimated transit time. A further object of the invention is a satellite radio communications system by decentralized transit time management. In particular, the invention applies to satellite communications wherein the waveform implements spread spectrum techniques and frequency hopping in general, and more particularly to transparent geostationary satellite communications.</p> |
