A New Method for Estimation of the Source Coherency Structure of Wideband Sources
Based on the sources- smoothed rank profile (SRP) and modified minimum description length (MMDL) principle, a method for estimation of the source coherency structure (SCS) and the number of wideband sources is proposed in this paper. Instead of focusing, we first use a spatial smoothing technique to pre-process the array covariance matrix of each frequency for de-correlating the sources and then use smoothed rank profile to determine the SCS and the number of wideband sources. We demonstrate the availability of the method by numerical simulations.
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[2] Ziskind L, Wax M. Maximum likelihood localization of multiple sources
by alternating projection(J). IEEE Trans. On ASSP, 1988, 36(10):
1553-1559.
[3] Ottersten B, Viberg M, Kailath T. Analysis of subspace fitting and ML
techniques for parameter estimation from sensor array data(J). IEEE
Trans. On SP, 1992, 40(3): 590-600.
[4] Schmidt R O. Multiple emitter location and signal parameter estimation.
IEEE Trans., 1986,AP-34(3): 276-280.
[5] M. Wax and T. Kailath. Detection of signals by information theoretic
criteria. IEEE Trans. Acoust. Speech Signal Processing. 1985. vol.
ASSP-33: 387-392.
[6] M. Wax. Detection and localization of multiple sources via the stochastic
signals model. IEEE Trans. Signal Processing, vol. 39, pp. 2450-2455,
Nov. 1991.
[7] T. J. Shan, A. Paulraj, and T. Kailath. On smoothed rank profile tests in
eigenstructure methods for directions-of-arrival estimation.IEEE Trans.
Acoust.Speech Signal Processing, vol. ASSP-35, no, pp. 1377-1385,
1987.
[8] S. Prasad and B. Chandna. An augmented smoothed rank profile
algorithm for determination of source coherency structure. IEEE Trans.
Acoust. Speech Signal Processing. 1989. vol. 37(7): 1144-1146.
[9] Cozzens J H, Sousa M J. Source enumeration in a correlated signal
environment. IEEE Trans. on SP, 1994, 42(2): 304-317.
[10] H. Wang and M. Kaveh. Coherent signal-subspace processing for
detection and estimation of angles of arrival of multiple wideband
sources. IEEE Trans. Acoust. Speech. Signal Processing. , 1985. vol.
ASSP-33: 823-831.
[11] K. M. Wong, Q. T. Zhang, J. P. Reilly, and P. C. Yip. On information
theoretic criteria for determining the number of signals in high resolution
array processing. IEEE Trans. Acoust. Speech Signal Processing, . 1990.
vol. 38: 1959-1970.
[12] D. R. Brillinger. Time series: Data Analysis and Theory. New York: Holt,
Rinehart and Winston, 1975.
[13] Valaee S, Kabal P. Wideband array processing using a two-sided
correlation transformation. IEEE Trans. on SP, 1995, 43(1): 160-172.
[1] Schmidt R O. Multiple emitter location and signal parameter
estimation(J). IEEE Trans. On AP, 1986, 34(3): 276-280.
[2] Ziskind L, Wax M. Maximum likelihood localization of multiple sources
by alternating projection(J). IEEE Trans. On ASSP, 1988, 36(10):
1553-1559.
[3] Ottersten B, Viberg M, Kailath T. Analysis of subspace fitting and ML
techniques for parameter estimation from sensor array data(J). IEEE
Trans. On SP, 1992, 40(3): 590-600.
[4] Schmidt R O. Multiple emitter location and signal parameter estimation.
IEEE Trans., 1986,AP-34(3): 276-280.
[5] M. Wax and T. Kailath. Detection of signals by information theoretic
criteria. IEEE Trans. Acoust. Speech Signal Processing. 1985. vol.
ASSP-33: 387-392.
[6] M. Wax. Detection and localization of multiple sources via the stochastic
signals model. IEEE Trans. Signal Processing, vol. 39, pp. 2450-2455,
Nov. 1991.
[7] T. J. Shan, A. Paulraj, and T. Kailath. On smoothed rank profile tests in
eigenstructure methods for directions-of-arrival estimation.IEEE Trans.
Acoust.Speech Signal Processing, vol. ASSP-35, no, pp. 1377-1385,
1987.
[8] S. Prasad and B. Chandna. An augmented smoothed rank profile
algorithm for determination of source coherency structure. IEEE Trans.
Acoust. Speech Signal Processing. 1989. vol. 37(7): 1144-1146.
[9] Cozzens J H, Sousa M J. Source enumeration in a correlated signal
environment. IEEE Trans. on SP, 1994, 42(2): 304-317.
[10] H. Wang and M. Kaveh. Coherent signal-subspace processing for
detection and estimation of angles of arrival of multiple wideband
sources. IEEE Trans. Acoust. Speech. Signal Processing. , 1985. vol.
ASSP-33: 823-831.
[11] K. M. Wong, Q. T. Zhang, J. P. Reilly, and P. C. Yip. On information
theoretic criteria for determining the number of signals in high resolution
array processing. IEEE Trans. Acoust. Speech Signal Processing, . 1990.
vol. 38: 1959-1970.
[12] D. R. Brillinger. Time series: Data Analysis and Theory. New York: Holt,
Rinehart and Winston, 1975.
[13] Valaee S, Kabal P. Wideband array processing using a two-sided
correlation transformation. IEEE Trans. on SP, 1995, 43(1): 160-172.
@article{"International Journal of Electrical, Electronic and Communication Sciences:64396", author = "Yong-jun Zhao and Heng-li Zhang and Zong-yun Hu", title = "A New Method for Estimation of the Source Coherency Structure of Wideband Sources", abstract = "Based on the sources- smoothed rank profile (SRP) and modified minimum description length (MMDL) principle, a method for estimation of the source coherency structure (SCS) and the number of wideband sources is proposed in this paper. Instead of focusing, we first use a spatial smoothing technique to pre-process the array covariance matrix of each frequency for de-correlating the sources and then use smoothed rank profile to determine the SCS and the number of wideband sources. We demonstrate the availability of the method by numerical simulations.
", keywords = "Wideband sources, source coherency structure (SCS),
smoothed rank profile (SRP).", volume = "1", number = "6", pages = "930-5", }
