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Now showing items 1-9 of 9
An L-shaped Array with Non-Orthogonal Axes – Its Cramer-Rao Bound for Direction Finding
(IEEE, 2017-08)
If a nominally L-shaped sensor-array's two legs are not exactly perpendicular, its azimuth-polar direction-of-arrival estimation would be degraded. This paper quantifies this degradation via a deterministic Cramér-Rao ...
Parameterization and Forecasting of Childhood Pneumonia Model Using Least Square Approximation, Lagrange Polynomial and Monte Carlo Simulation
(2020-09)
espite a study by [1] proposing a simple model of under five years pneumonia, doubt lingers
regarding its reliability, sufficiency and validity. The research question is whether the model is valid
for use or not? The ...
Direction Finding with the Sensors' Gains Suffering Bayesian Uncertainty — Hybrid CRB and MAP Estimation
(IEEE, 2016-08)
The paper analyzes how a sensor array's direction-finding accuracy may be degraded by any stochastic uncertainty in the sensors' complex value gains, modeled here as complex value Gaussian random variables. This analysis ...
A uniform circular array of isotropic sensors that stochastically dislocate in three dimensions—The hybrid Cramer-Rao bound of direction-of-arrival estimation
(Acoustical Society of America, 2019-07)
An array’s constituent sensors could be spatially dislocated from their nominal positions. This
paper investigates how such sensor dislocation would degrade a uniform circular array (UCA) of
isotropic sensors (like ...
Hybrid Cram er-Rao bound of direction finding, using a triad of cardioid sensors that are perpendicularly oriented and spatially collocated
(Acoustical Society of America, 2019-07)
Cardioid microphones/hydrophones are highly directional acoustical sensors, which enjoy easy
availability via numerous commercial vendors for professional use. Collocating three such cardioids
in orthogonal orientation ...
Cramer-Rao Bound of Direction Finding Using Uniform Arc Arrays
(2019)
Direction-of-Arrival estimation accuracy using arc array geometry is considered in this paper.
There is a scanty use of Uniform Arc Array (UAA) in conjunction with Cram er-Rao bound (CRB)
for Direction-of-Arrival estimation. ...
Cramer-Rao Bound of Direction Finding Using a Uniform Hexagonal Array
(2019-06)
Direction-of-arrival (DOA) estimation is a key area of sensor array processing which is encountered
in many important engineering applications. Although various studies have focused on the uniform
hexagonal array for ...
A Lower Bound of Estimation Error of an Emitter's Direction-of-Arrival / Polarization, for a Collocated Triad of Orthogonal Dipoles/Loops That Fail Randomly
(2017-04)
For a triad of short dipoles (or of small loops), in perpendicular orientation relative to each other but collocated in
space, this study derives a lower bound for their error in direction-of-arrival estimation and ...
A uniform circular array of isotropic sensors that stochastically dislocate in three dimensions—The hybrid Cramér-Rao bound of direction-of-arrival estimation
(2019-07)
An array’s constituent sensors could be spatially dislocated from their nominal positions. This
paper investigates how such sensor dislocation would degrade a uniform circular array (UCA) of
isotropic sensors (like ...