| 摘要 |
A system and method for determining timing offset errors in a satellite syst em based upon Doppler and Doppler rate of change is provided. A user terminal (110, 113) determines first and second timing offsets (902, 906) respectivel y associated with first and second satellite beams (1142, 1204) from respectiv e first and second satellites (102, 104). Next, the user terminal (110, 113) determines the Doppler and Doppler rate of change associated with the first and second satellite beams (1100, 1102). A timing offset is estimated from t he measured Doppler and Doppler rate of change and is then compared with the us er terminal's own determined timing offset (906). If the comparison does not produce a value within a predetermined threshold, a beam identification erro r is declared.
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