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Signal, Image and Video Processing

, Volume 6, Issue 2, pp 171–178 | Cite as

Time delays and angles of arrival estimation using known signals

  • Pushpendra Singh
  • Pradip Sircar
Original Paper

Abstract

Channel estimation in a multipath mobile communication system is addressed in this paper, and a novel approach based on the linear prediction in frequency domain and the singular value decomposition technique is presented for joint estimation of the angles of arrival and the time delays of multiple reflections of a known signal. Simulation results illustrating the performance of the proposed algorithm are included, and the results show that the proposed method is close in accuracy when compared to the iterative maximum-likelihood method. However, when the two methods are compared in computational complexity, it is demonstrated that the proposed method reduces the complexity to nearly half of that of the maximum-likelihood method. The Cramer–Rao bounds are computed for comparison.

Keywords

Wireless communication Channel estimation Array processing Source localization Joint angle and delay estimation 

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Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Department of Electrical EngineeringIndian Institute of Technology KanpurKanpurIndia

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