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Hybrid TW-TOA/TDOA ...
Hybrid TW-TOA/TDOA Positioning Algorithms for Cooperative Wireless Networks
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- Gholami, Mohammad Reza, 1976 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Gezici, Sinan (författare)
- Bilkent Universitesi,Bilkent University
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- Ström, Erik, 1965 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Rydström, Mats, 1978 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- ISBN 9781612842332
- IEEE, 2011
- 2011
- Engelska.
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Ingår i: IEEE International Conference on Communications. - : IEEE. - 1550-3607. - 9781612842332
- Relaterad länk:
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http://publications.... (primary) (free)
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http://repository.bi...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The problem of positioning an unknown target is studied for a cooperative wireless sensor network using hybrid two-way time-of-arrival and time-difference-of-arrival measurements. A maximum likelihood estimator (MLE) can be employed to solve the problem. Due to the non-linear nature of the cost function in the MLE, a numerical method, e.g., an iterative search algorithm with a good initial point, should be taken to accurately estimate the target. To avoid drawbacks in a numerical method, we insteadlinearize the measurements and obtain a new two-step estimator that has a closed-form solution in each step.Simulation results confirm that the proposed linear estimator can attain Cram\'er-Rao lower bound for sufficiently high SNR.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Elektroteknik och elektronik -- Signalbehandling (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Electrical Engineering, Electronic Engineering, Information Engineering -- Signal Processing (hsv//eng)
Nyckelord
- wireless sensor networks
- linear estimator
- Cooperative positioning
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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