Analysis of joint angle-frequency estimation using ESPRIT

Authors:
A.N. Lemma;A.-J. van der Veen;E.F. Deprettere
Affiliations:
Dept. of Inf. Technol., Delft Univ. of Technol., Netherlands;-;-
Venue:
IEEE Transactions on Signal Processing
Year:
2003

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Abstract

High-resolution parameter estimation techniques have been applied to jointly estimate multiple signal parameters. we consider the problem of determining the directions and center frequencies of a number of narrowband sources in a band of interest. We present a joint angle-frequency estimation method, based on the multidimensional ESPRIT algorithm. A perturbation error analysis gives bounds on the parameter estimates and provides optimal values for the temporal and spatial smoothing parameters. The analysis is shown to be consistent with simulation results.