Estimation of nominal direction of arrival and angular spread using an array of sensors
Signal Processing - Special issue on subspace methods, part I: array signal processing and subspace computations
Distributed source localization using ESPRIT algorithm
IEEE Transactions on Signal Processing
Estimation of multipath parameters in wireless communications
IEEE Transactions on Signal Processing
The effects of local scattering on direction of arrival estimationwith MUSIC
IEEE Transactions on Signal Processing
Source localization with distributed sensor arrays and partial spatial coherence
IEEE Transactions on Signal Processing
IEEE Transactions on Signal Processing
Nonline-of-sight error mitigation in mobile location
IEEE Transactions on Wireless Communications
Position location using wireless communications on highways of the future
IEEE Communications Magazine
An overview of the challenges and progress in meeting the E-911 requirement for location service
IEEE Communications Magazine
IEEE Communications Magazine
Performance benchmarking for wireless location systems
IEEE Communications Magazine
Evolution of wireless data services: IS-95 to cdma2000
IEEE Communications Magazine
State space initiation for blind mobile terminal position tracking
EURASIP Journal on Advances in Signal Processing
A novel fingerprint location method using ray-tracing
GLOBECOM'09 Proceedings of the 28th IEEE conference on Global telecommunications
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A novel scheme is described for determining the position of an unknown mobile terminal without any prior information of transmitted signals, keeping in mind, for example, radiowave surveillance. The proposed positioning algorithm is performed by using a single base station with an array of sensors in multipath environments. It works by combining the spatial characteristics estimated from data measurement and ray-tracing (RT) analysis with highly accurate, three-dimensional terrain data. It uses two spatial parameters in particular that characterize propagation environments in which there are spatially spreading signals due to local scattering: the angle of arrival and the degree of scattering related to the angular spread of the received signals. The use of RT analysis enables site-specific positioning using only a single base station. Furthermore, our approach is a so-called blind estimator, that is, it requires no prior information about the mobile terminal such as the signal waveform. Testing of the scheme in a city of high density showed that it could achieve 30m position-determination accuracy more than 70% of the time even under non-line-of-sight conditions.