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- W38589319 abstract "ABSTRACT: This paper deals with the problem of estimating the first autocorrelation coefficients of a discrete process which has a band-limited spectrum in a way that accounts for the bandwidth hypothesis. Although the approach that we propose to do it can be used in many such problems, we developed it to solve the problem of the localisation of wide-band plane wave sources corrupted by a spherical isotropic noise, and the results will be presented in this context The specificity of this problem stems from the fact that if f max represents the maximal frequency of the received signals, then the spatial spectrum at each frequency f max is carried by a known interval strictly included in [-1/2d, 1/2d] (where d = c/2f max is the distance between two sensors). We will show how it is possible to account for this a priori information in order to improve the classical estimation methods of the covariance matrices of the received signals at each frequency f max - Simulation results show that the use of our covariance matrix estimate improves the performances of a MUSIC-like algorithm." @default.
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- W38589319 date "1992-01-01" @default.
- W38589319 modified "2023-09-30" @default.
- W38589319 title "ESTIMATION OF THE AUTOCORRELATION COEFFICIENTS OF BAND LIMITED SIGNALS. APPLICATION TO THE SOURCES LOCALIZATION PROBLEM" @default.
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- W38589319 doi "https://doi.org/10.1016/b978-0-444-89587-5.50158-4" @default.
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