Sv. Schell, A SEPARABILITY THEOREM FOR 2M CONJUGATE-SYMMETRICAL SIGNALS IMPINGINGON AN M-ELEMENT SENSOR ARRAY, IEEE transactions on signal processing, 45(3), 1997, pp. 789-792
We show under reasonable assumptions that an M-sensor linear-conjugate
-linear (LCL) processor can separate up to 2M conjugate-symmetric sign
als, including the cases in which up to M of the signals each share th
e same direction of arrival as each of nd other signals. Numerical eva
luations illustrate ways in which the performance of the M-sensor LCL
processor is superior to that of a conventional 2M-sensor linear proce
ssor when 2M conjugate-symmetric signals are received.