| 摘要 |
<p>The invention relates to a method for improving the tracking of a data transmission signal transmitted to a receiver of a satellite navigation system in addition to navigation signals transmitted by the satellites to a satellite positioning receiver, comprising: a step of transmitting (10), to the receiver, during a so-called improvement period TAAi and by means of an improvement signal transmitted in conjunction with said data transmission signal, data Ni or other data Nai enabling the prediction of said data, said data further being transmitted to the receiver by means of the data transmission signal during a transmission period Tai beginning after the end of the improvement period TAAi; a step of receiving (20), by the receiver, said data Ni or said other data Nai which are transmitted by means of the improvement signal; a step of generating symbols (30) to be used for modulating the data transmission signal during said transmission period Tai, by means of said received data Ni or other received data Nai; and a step of tracking (40) the data transmission signal while eliminating the effect of the modulation of said data transmission signal by the generated symbols.</p> |
