Array signal processing under model uncertainties

Three array signal processing model error scenarios are considered: errors in sensor gains and phases, errors in sensor location, and errors in sensor-pair alignments of ESPRIT-type subarrays. The array models under the latter two error scenarios are shown to be approximately of the same form as that under sensor gains and phases provided that the respective errors are small and the magnitudes of the direction of arrival (DOA) angles lie within a narrow enough range. An iterative algorithm for the estimation of the DOA angles of multiple narrowband sources under these error scenarios is proposed and simulations indicate improved estimates using the algorithm.<<ETX>>

[1]  Thomas Kailath,et al.  ESPRIT-estimation of signal parameters via rotational invariance techniques , 1989, IEEE Trans. Acoust. Speech Signal Process..

[2]  Thomas Kailath,et al.  On the sensitivity of the ESPRIT algorithm to non-identical subarrays , 1990 .

[3]  James Ting-Ho Lo,et al.  Eigenstructure methods for array sensor localization , 1987, ICASSP '87. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[4]  Thomas Kailath,et al.  Direction of arrival estimation by eigenstructure methods with unknown sensor gain and phase , 1985, ICASSP '85. IEEE International Conference on Acoustics, Speech, and Signal Processing.

[5]  Peter M. Schultheiss,et al.  Array shape calibration using sources in unknown locations-Part I: Far-field sources , 1987, IEEE Trans. Acoust. Speech Signal Process..

[6]  R. O. Schmidt,et al.  Multiple emitter location and signal Parameter estimation , 1986 .

[7]  Benjamin Friedlander,et al.  A sensitivity analysis of the MUSIC algorithm , 1989, International Conference on Acoustics, Speech, and Signal Processing,.

[8]  Yih-Fang Huang,et al.  An analysis of ESPRIT under random sensor uncertainties , 1992, IEEE Trans. Signal Process..

[9]  B. Friedlander,et al.  Eigenstructure methods for direction finding with sensor gain and phase uncertainties , 1988, ICASSP-88., International Conference on Acoustics, Speech, and Signal Processing.

[10]  Peter M. Schultheiss,et al.  Array shape calibration using sources in unknown locations-Part II: Near-field sources and estimator implementation , 1987, IEEE Trans. Acoust. Speech Signal Process..

[11]  Anthony J. Weiss,et al.  Array shape calibration using sources in unknown locations-a maximum likelihood approach , 1989, IEEE Trans. Acoust. Speech Signal Process..

[12]  Thomas Kailath,et al.  An analysis of subspace fitting algorithms in the presence of sensor errors , 1990, International Conference on Acoustics, Speech, and Signal Processing.

[13]  Benjamin Friedlander.  A sensitivity analysis of the MUSIC algorithm , 1990, IEEE Trans. Acoust. Speech Signal Process..