Target Localization by UWB Signals

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• 关键词：Computational geometry ; UWB radar ; Snell’s law ; Localization of point target behind a wall ; Newton’s method
• 刊名：Lecture Notes in Computer Science
• 出版年：2015
• 出版时间：2015
• 年：2015
• 卷：8962
• 期：1
• 页码：254-261
• 全文大小：262 KB
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  9. Aftanas, M., Sachs, J., Drutarovsky, M., Kocur, D.: Effcient and fast method of wall parameter estimation by using UWB radar system. Frequenz 63(11-2), 231-35 (2009). ISSN 0016-1136
  10. Kocur, D., Rovňáková, J., ?vecová, M.: Through wall tracking of moving targets by M-sequence UWB radar. In: Rudas, I.J., Fodor, J., Kacprzyk, J. (eds.) Towards Intelligent Engineering and Information Technology. SCI, vol. 243, pp. 349-64. Springer, Heidelberg (2009) CrossRef
  11. Rovňáková, J., Kocur, D.: Compensation of wall effect for through wall tracking of moving targets. Radioengineering 18(2), 189-95 (2009)
  12. Rovňáková, J., Kocur, D.: TOA estimation and data association for through-wall tracking of moving targets. EURASIP J. Wirel. Commun. Netw. 2010, 1-1 (2010). doi:10.1155/2010/420767 . Article ID 420767
  13. Bu?a, J., Ka?imír, P., Kocur, D., Plavka, J.: Distance of 3D Half-Circles Appearing by UWB Signal Processing (in preparation)
  
• 作者单位：Ján Bu?a (16)
  
  16. Department of Mathematics and Theoretical Informatics, FEE&I, Technical University in Ko?ice, Nemcovej 32, 040 01, Ko?ice, Slovakia
  
• 丛书名：Numerical Methods and Applications
• ISBN：978-3-319-15585-2
• 刊物类别：Computer Science
• 刊物主题：Artificial Intelligence and Robotics
  Computer Communication Networks
  Software Engineering
  Data Encryption
  Database Management
  Computation by Abstract Devices
  Algorithm Analysis and Problem Complexity
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1611-3349

文摘

The high bandwidth of ultra wideband (UWB) radars results in a high spatial resolution, typically a few cm. Thanks to good penetration through materials UWB radars can be very helpful, e.g., also in such situations: through-wall tracking of human beings during security operations, through-rubble localization of motionless persons following an emergency, e.g., earthquake or explosion, through-snow detection of people after an avalanche or through-dress security screening at airports for the detection of non-metal objects etc. An algorithm for the localization of a point target behind a wall based on the information about times of a signal arrival (TOA) to the receivers will be presented. The 3-dimensional case is considered. We suppose that the permittivity of the considered wall is known. The introduced method may be used for known wall width, and also for the wall width determination. The determination of the through wall TOA for given point targets, based on Snell’s law, has been considered before by other authors. We solve the inverse problem using the Newton method for the minimization of the least squares objective function.