A closed form for false location injection under time difference of arrival

We consider a sensor network, which in the presence of a rogue sensor, is tasked with estimating emitter location under the time difference of arrival (TDOA) method. The rogue seeks to maximally degrade estimation accuracy by injecting a single false report of sensor position. Our closed form soluti...

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Hauptverfasser: Huie, L M, Fowler, M L
Format: Tagungsbericht
Sprache:eng
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Beschreibung
Zusammenfassung:We consider a sensor network, which in the presence of a rogue sensor, is tasked with estimating emitter location under the time difference of arrival (TDOA) method. The rogue seeks to maximally degrade estimation accuracy by injecting a single false report of sensor position. Our closed form solution gives a set of false positions that minimize the network's Fisher Information Matrix (FIM). We find that the rogue sensor should report a false position along the vector pointing from the emitter to its valid paired sensor. Further, a method for finding the false location that not only minimizes the FIM but is also robust to the location network's ability to detect and reject erroneous TDOA measurements is developed.
ISSN:1058-6393
2576-2303
DOI:10.1109/ACSSC.2010.5757858