Date of Award

12-1994

Document Type

Thesis

Degree Name

Master of Science in Electrical Engineering

Department

Department of Electrical and Computer Engineering

First Advisor

Vittal Pyati, PhD

Abstract

The dependence of Boresight Error (BSE) on incident Electric Field (E-Field) polarization tilt angle is investigated. BSE, defined as the angular difference between a target's actual and radar-indicated position, is influenced by the radome used to protect the antenna. A - reliable computer model for predicting the BSE of electrically large radar-radome systems has been demonstrated and used to investigate the dependence of radome-induced BSE for various combinations of scan angle, element polarization, and incident E-Field polarization. The analysis includes a development of a transmission-depolarization model to justify the results of the computer model. Results compare very well with empirical, published, and experimentally measured data for specific scan angle and polarization cases considered. Generally, BSE exhibits a noticeable dependence on E-Field polarization, except under limited scanning conditions for specific linearly polarized antenna apertures.

AFIT Designator

AFIT-GE-ENG-94D-31

DTIC Accession Number

ADA289254

Comments

The author's Vita page is omitted.

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