- Research Article
- Open Access
State Space Initiation for Blind Mobile Terminal Position Tracking
EURASIP Journal on Advances in Signal Processing volume 2008, Article number: 394219 (2007)
Blind localization and tracking of mobile terminals in urban scenarios is an important requirement for offering new location-based services, handling emergency cases of nonsubscribed users, public safety, countering IEDs, and so forth. In this context, we propose a track-before-detect scheme taking explicitly advantage of multipath propagation in an urban terrain by using a priori information about the known locations of the main scattering objects such as buildings. This information is made available for localization and tracking by a real-time ray tracing technique based on a 2D geographic database. This allows the prediction of the directional and temporal structure of the received multipath components for an arbitrary transmitter position. We consider a single observing station where the direction and the relative time of arrival of the received multipath components can be estimated by an antenna array. By a likelihood function, which is algorithmically defined for a randomly distributed set of potential transmitter positions, these measurements are compared with those being expected by ray tracing. This likelihood function is the key component of a track-before-detect scheme providing initial state estimates for mobile transmitter tracking using a particle filtering technique.
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Algeier, V., Demissie, B., Koch, W. et al. State Space Initiation for Blind Mobile Terminal Position Tracking. EURASIP J. Adv. Signal Process. 2008, 394219 (2007). https://doi.org/10.1155/2008/394219
- Likelihood Function
- Antenna Array
- Mobile Terminal
- Emergency Case
- Terminal Position