Direction of arrival tracking below the ambiguity threshold

We present an algorithm for direction of arrival tracking that allows operation below the ambiguity threshold of the direction finding system. Using multiple target tracking techniques, the algorithm turns the most likely directions of arrival of each measurement into multiple potential tracks and then selects the true track as that with the maximum cumulative likelihood. The improvement offered by the algorithm, namely the extension of the ambiguity-free domain, is demonstrated by simulated experiments.

[1]  Ariela Zeira,et al.  Realizable lower bounds for time delay estimation , 1993, IEEE Trans. Signal Process..

[2]  Roy L. Streit,et al.  Frequency line tracking using hidden Markov models , 1990, IEEE Trans. Acoust. Speech Signal Process..

[3]  Petre Stoica,et al.  MUSIC, maximum likelihood, and Cramer-Rao bound , 1989, IEEE Transactions on Acoustics, Speech, and Signal Processing.

[4]  B. Zhou,et al.  Tracking the direction of arrival of multiple moving targets , 1994, IEEE Trans. Signal Process..

[5]  Rangasami L. Kashyap,et al.  Multiple target tracking using maximum likelihood principle , 1995, IEEE Trans. Signal Process..

[6]  Ilan Ziskind,et al.  Maximum likelihood localization of multiple sources by alternating projection , 1988, IEEE Trans. Acoust. Speech Signal Process..

[7]  B. Anderson,et al.  Optimal Filtering , 1979, IEEE Transactions on Systems, Man, and Cybernetics.

[8]  Y. Bar-Shalom.  Tracking and data association , 1988 .

[9]  Jean-Jacques Fuchs,et al.  Detection and estimation of superimposed signals , 1998, Proceedings of the 1998 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP '98 (Cat. No.98CH36181).

[10]  P. Schultheiss,et al.  Delay estimation using narrow-band processes , 1981 .

[11]  J. F. Böhme,et al.  Estimation of spectral parameters of correlated signals in wavefields , 1986 .

[12]  Ruby Tweg,et al.  An algorithm for exhaustive extrema computation and its application to array signal processing , 1996, 1996 IEEE International Conference on Acoustics, Speech, and Signal Processing Conference Proceedings.

[13]  Marwan A. Simaan,et al.  An efficient algorithm for tracking the angles of arrival of moving targets , 1991, IEEE Trans. Signal Process..

[14]  François Bourgeois,et al.  An extension of the Munkres algorithm for the assignment problem to rectangular matrices , 1971, CACM.