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Adaptive Processing of Wideband Signals through Interpolation and Direct Data Domain Least Square Techniques using Semicircular Array

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3 Author(s)
Elkamchouchi, H.M. ; Electr. Eng., Alexandria Univ., Alexandria ; Abdel-Aziz, D. ; Omar, M.M.M.

A multistage analysis procedure that combines electromagnetic analysis with signal processing is used to solve a problem in radar and mobile communication. Initially, electromagnetic principles are applied to compensate for the effects of mutual coupling between antenna elements, including the effect of nonuniformity in spacing between the elements. Then a direct data domain least square methodology is implemented to yield the signal of interest. These two techniques are dealt with narrowband signal. In this paper, we show that the above methodology can be applied in wideband signals using semicircular array. The performance and accuracy of the proposed technique is observed through two simulated examples. First example, the antenna elements are to be point sources. And second example, the mutual coupling between actual elements is taken into account. The effect of mutual coupling reduces the signal bandwidth that the proposed technique can deal with.

Published in:

Communication Technology, 2006. ICCT '06. International Conference on

Date of Conference:

27-30 Nov. 2006

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