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Broad-band detection based on two-dimensional mixed autoregressive models

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3 Author(s)
Kay, S.M. ; Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA ; Nagesha, V. ; Salisbury, J.

Two detectors for broadband plane waves in colored noise fields that use a linear array are described. The signal spectrum, arrival angle, and noise field coloration are not known a priori. Using a two-dimensional mixed autoregressive model, a generalized-likelihood-ratio test and its weak-signal equivalent, the Rao test, are derived. The performances of the proposed detectors are shown by computer simulations to be superior to those of conventional Fourier-based methods. Detection results for real data are presented

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Signal Processing, IEEE Transactions on  (Volume:41 ,  Issue: 7 )