Advanced SearchSearch Tips
Clock Synchronization for Multi-Static Radar Under Non-Line-of-Sight System Using Robust Least M-Estimation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Clock Synchronization for Multi-Static Radar Under Non-Line-of-Sight System Using Robust Least M-Estimation
Shin, Hyuk-Soo; Yeo, Kwang-Goo; Joeng, Myung-Deuk; Yang, Hoongee; Jung, Yongsik; Chung, Wonzoo;
  PDF(new window)
In this paper, we propose the algorithm which considers applying recently proposed clock synchronization techniques with quite high accuracy in a few wireless sensor networks researches to time synchronization algorithm for multi-static radar system and especially overcomes the limitation of previous theory, cannot be applied between nodes in non-line of sight (NLOS). Proposed scheme estimates clock skew and clock offset using recursive robust least M-estimator with information of time stamp observations. And we improve the performance of algorithm by tracking and suppressing the time delays difference caused by NLOS system. Futhermore, this paper derive the mean square error (MSE) to present the performance of the proposed estimator and comparative analysis with previous methods.
Recursive least M-estimation(RLM);multi-static Radar;non-line-of-sight;wireless sensor networks(WSNs);
 Cited by
Matthias weiB, "Synchronisation of Bistatic Radar System", Geoscience and Remote Sensing Symposium, pp.1750-1753, Wachtberg, Germany, Sept 2004

K.-L. Noh, Q. M. Chaudhari, E. Serpedin, and B. W. Suter, "Novel clock phase offset and skew estimation using two-way timing message exchanges for wireless sensor networks," IEEE Trans. Commun., vol. 55,no. 4, pp. 766-777, Apr. 2007. crossref(new window)

Mei Leng, Yik-Chung Wu, "On Clock Synchronization Algorithms for Wireless Sensor Networks Under Unknown Delay", IEEE TRANSACTIONS ON VEHICULAR TECHNOLOGY, vol. 59, no. 1, pp.182-190, JANUARY 2010. crossref(new window)

Simon Haykin, Michael Moher, Modern Wireless communication, NJ: Prentice-Hall, 2005.

S. H. Zhao and S. C. Chan, "A novel algorithm for mobile station location estimation with none line of sight error using robust least M-estimation," in Proc. IEEE ISCAS, pp. 1176-n1179., Seattle, WA, May 2008,

S. C. Chan and Y. Zou, "recursive least M-estimate algorithm for robust adaptive filtering in impulsive noise: fast algorithm and convergence performance analysis," IEEE Trans. Signal Proces., vol 52, pp. 975-991, Apr. 2004. crossref(new window)

R. E. Frank and M. Hampel, Robust Statistic: The Approach Based on Influence Fucntions, New York:John Wiley &Sons Inc., 1986.

Miklos Maroti, Branislav Kusy, Gyula Simon, Akos Ledeczi, "The Flooding Time Synchronization Protocol", SenSys '04, pp.39-49 NY, USA, Nov. 2004

Yik-Chung Wu, Qasim Chaudhari, and Erchin Serpedin "Clock Synchronization of Wireless Sensor Networks", IEEE SIGNAL PROCESSING MAGAZINE, pp.124-138, JAN 2011.

Jang-Sub Kim, Jaehan Lee, Erchin Serpedin, and Khalid Qaraqe, "Robust Clock Synchronization in Wireless Sensor Networks Through Noise Density Estimation", IEEE TRANSACTIONS ON SIGNAL PROCESSING, vol. 59, no. 7, pp.3035-3047, July 2011. crossref(new window)