Naval Postgraduate School
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.
Description
Approved for public release; distribution is unlimited
Collections
Related items
Showing items related by title, author, creator and subject.
-
Research on motion planning of autonomous mobile robot
(Monterey, California. Naval Postgraduate School, 1996-03);The path planning algorithm in Yamabico is based on a variation of Dijkstra's algorithm which has time complexity of O(n2). This algorithm works well in a dynamic environment, but a faster algorithm, called the All-Pairs ... -
Optimal search for the wake of a moving target when searcher motion is constrained
(Monterey, California. Naval Postgraduate School, 1983-09);A method for determining the optimal or near-optimal search path for the wake of a moving target when the searcher's motion is constrained is presented. The problem uses a Markov action model in discrete time and space ... -
Efficient adaptive FIR and IIR filters
(Monterey, California. Naval Postgraduate School, 1979-12);Self adaptive filters adjust their parameters to perform an almost optimal filtering operation without apriori knowledge of the input signal statistics . Two approaches to the design of efficient self adaptive discrete ...
