| 摘要 |
A method is provided for determining the position of a satellite navigation system receiver in which use is made of a probabilistic weighting of the signals received, the weighting using a coefficient Ki, for each satellite of index i, the coefficient Ki being a product of factors each comprising a probability of existence of a disturbance, the coefficient Ki, for each satellite of index i, comprising at least one factor of the form (1−Pji)ai. |
| 主权项 |
1. A method for determining the position of a satellite navigation system receiver in which use is made of a probabilistic weighting of the signals received, the said weighting using a coefficient Ki, for each satellite of index i, the said coefficient Ki being a product of factors each comprising a probability of existence of a disturbance, the said coefficient Ki, for each satellite of index i, comprising at least one factor of the form (1−Pji)ai, j varying from 1 to 6 in which:
P1i represents, for the satellite of index i, a first probability that the signal received comprises a combination of a non-reflected signal component and of a multi-path signal component, P2i represents, for the satellite of index i, a second probability that the signal received comprises solely a multi-path signal component, P3i represents, for the satellite of index i, a third probability that the signal received is jammed by terrestrial interference, P4i represents, for the satellite of index i, a fourth probability that the signal received comprises a combination of a component of a signal generated by a jammer on the ground and of a component of the nominal signal, P5i represents, for the satellite of index i, a fifth probability that the signal received is not in coherence with previous conditions of reception of the said signal, P6i represents, for the satellite of index i, a sixth probability that the signal received is not in coherence with a mapping of the environs, and ai represents a positive real. |
