Two-dimensional beamforming using a frequency domain complex Least Mean-Squares (LMS) adaptive filter
twodimensionalbe00chan.pdf (5.870Mb)Abstract
The complex LMS adaptive algorithm developed by Widrow
[Ref. 1] is used in the frequency domain to estimate the
azimuth and elevation angles of a plane wave incident upon
a planar array. The complex LMS algorithm is applied to two
cases. The first case is a passive detection problem. The
second case is a pulse communication problem. In both
cases, complex weights are determined using the complex LMS
algorithm which cophase all of the output electrical signals
from -the planar array. Three versions of the complex LMS
algorithm are studied and their performances are compared.
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