| 摘要 |
The invention relates to a distance measurement system (100) for locating a geostationary satellite (SA) equipped with a transponder (22), which comprises: - a central station (10) emitting a distance measurement signal (11), - at least one measurement station (13) receiving the emitted signal, including means for measuring the time of arrival of the emitted signal, and transmitted via the transponder (22) of the satellite, - the central and measurement stations, of known positions, including synchronization means with a common time base (18). The transponder (22) is that of a satellite telecommunications system (200), and has a bandwidth B; the central station includes means for emitting a specific distance measurement signal (11), distinct from the telecommunications signals transmitted via the transponder, with periodic events and with spread spectrum, the bandwidth of which is included in B. |
