Time of Arrival Estimation for UWB Localizers in Realistic Environments

• Main Authors: Falsi, Chiara (Contributor), Dardari, Davide (Author), Mucchi, Lorenzo (Author), Win, Moe Z. (Contributor)
• Other Authors: Massachusetts Institute of Technology. Department of Aeronautics and Astronautics (Contributor), Massachusetts Institute of Technology. Laboratory for Information and Decision Systems (Contributor)
• Format: Article
• Language: English
• Published: Hindawi Pub. Corp/Springer, 2011-11-29T19:56:23Z.
• Subjects: Article
• Online Access: Get fulltext

This paper investigates time of arrival (ToA) estimation methods for ultra-wide bandwidth (UWB) propagation signals. Different algorithms are implemented in order to detect the direct path in a dense multipath environment. Different suboptimal, low-complex techniques based on peak detection are used to deal with partial overlap of signal paths. A comparison in terms of ranging accuracy, complexity, and parameters sensitivity to propagation conditions is carried out also considering a conventional technique based on threshold detection. In particular, the algorithms are tested on experimental data collected from a measurement campaign performed in a typical office building.
Charles Stark Draper Laboratory (Robust Distributed Sensor Networks Program)
Institute of Advanced Study (Natural Science & Technology Fellowship)
Italy. Ministero dell'istruzione, dell'università e della ricerca (Virtual Immersive Communications (VICom) project)
United States. Office of Naval Research (Young Investigator Award N00014- 03-1-0489)
National Science Foundation (U.S.) (Grant ANI-0335256)