PERFORMANCE ANALYSIS OF DIRECTION OF ARRIVAL ESTIMATION FOR A 3-D UNIFORM VOLUME ARRAY
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Authors
Fletcher, Kenneth A, II
Subjects
direction finding
angle of arrival estimation
performance analysis
sensitivity analysis
3-dimensional arrays
likelihood estimation
uniform antenna arrays
angle of arrival estimation
performance analysis
sensitivity analysis
3-dimensional arrays
likelihood estimation
uniform antenna arrays
Advisors
Romero, Ric
Jenn, David C.
Date of Issue
2021-06
Date
June 2021
Publisher
Monterey, California. Naval Postgraduate School
Language
Abstract
In this thesis, performance analysis of direction of arrival estimation using an antenna array is
performed. We apply methods and concepts commonly used in 1-d linear and 2-d planar arrays to create a
3-d isotropic, uniform volume array. We compare and contrast the effectiveness of a 1-d, 2-d, and 3-d
uniform isotropic array to observe the advantages of each. We incorporate the effect of element factor when
using half-wave dipole antenna elements rather than isotropic point sources for the elements in our array.
We also consider the polarization of the incident wave impinging upon the array. We build three 3-d
orthogonal arrays of colinear dipoles and evaluate their performance using two estimation techniques over
varying angles of incidence and power levels. The estimation techniques utilized are the maximum
likelihood estimation (MLE) and minimum variance distortionless response (MVDR), which are compared
against the Cramér–Rao bound (CRB). Performance analysis of these arrays corresponding to the two
estimation techniques is performed and summarized. The results show the benefits and limitations of a
uniform 3-d antenna array over others.
Type
Thesis
Description
Series/Report No
Department
Electrical and Computer Engineering (ECE)
Organization
Identifiers
NPS Report Number
Sponsors
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Distribution Statement
Approved for public release; distribution is unlimited.