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A separability theorem for 2M conjugate-symmetric signals impinging on an M-element sensor array

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1 Author(s)
Schell, S.V. ; Dept. of Electr. Eng., California Univ., Davis, CA, USA

We show under reasonable assumptions that an M-sensor linear-conjugate-linear (LCL) processor can separate up to 2M conjugate-symmetric signals, including the cases in which up to M of the signals each share the same direction of arrival as each of M other signals. Numerical evaluations illustrate ways in which the performance of the M-sensor LCL processor is superior to that of a conventional 2M-sensor linear processor when 2M conjugate-symmetric signals are received

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Signal Processing, IEEE Transactions on  (Volume:45 ,  Issue: 3 )