Abstract
We establish the asymptotic equivalence, up to complex conjugation, of two problems: 1) determining the nearfield performance of a farfield beampattern specification and 2) determining the equivalent farfield beampattern corresponding to a nearfield beampattern specification. Using this reciprocity relationship, we develop a computationally simple procedure to design a beamforming array to achieve a desired nearfield beampattern response. The superiority of this approach to existing methods, both in ease of design implementation and performance obtained, is analyzed and then illustrated by a design example.
Original language | English |
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Pages (from-to) | 33-40 |
Number of pages | 8 |
Journal | IEEE Transactions on Signal Processing |
Volume | 47 |
Issue number | 1 |
DOIs | |
Publication status | Published - 1999 |