| 摘要 |
A system for positioning an object in a constrained zone, including: a set of pseudolites distributed in the constrained zone and each presenting a spreading code corresponding to the spreading code of a satellite belonging to a constellation of satellites of a satellite navigation system, the constellation of satellites including a first set of satellites and a second set of satellites of disjoint visibility, and a receiver on the object to be localized, the pseudolites being distributed in the constrained zone such that, at any point of the constrained zone, the receiver can acquire the positioning signals of at least two pseudolites presenting spreading codes corresponding to a satellite of the first set, and to a satellite of the second set, such that the receiver detects the impossibility of the acquired signals being transmitted by satellites of the constellation of satellites and determines the acquired signals were transmitted by pseudolites.
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