Correlative interferometry for angle of arrival estimation and signal source locating

Radio Direction Finding (RDF) refers to the measurement of the direction of the transmitted signal. RDF is used in military intelligence systems, public safety systems, navigation of ships and aircraft. The emitter location can be estimated based on the measured parameters, namely the angle of arriv...

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Main Author:	Isyaku, Usman Bature
Format:	Thesis
Language:	English
Published:	2015
Subjects:	TK Electrical engineering Electronics Nuclear engineering
Online Access:	http://eprints.utm.my/id/eprint/48712/25/UsmanBatureIsyakuMFKE2015.pdf
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id	my-utm-ep.48712
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spelling	my-utm-ep.487122020-06-18T00:59:58Z Correlative interferometry for angle of arrival estimation and signal source locating 2015-01 Isyaku, Usman Bature TK Electrical engineering. Electronics Nuclear engineering Radio Direction Finding (RDF) refers to the measurement of the direction of the transmitted signal. RDF is used in military intelligence systems, public safety systems, navigation of ships and aircraft. The emitter location can be estimated based on the measured parameters, namely the angle of arrival (AOA), time of arrival (TOA) or time difference of arrival (TDOA). In this project, the square arrangements of four receivers which spaced at 5 km from the centre is considered. The configuration is determined in order to establish line of sight (LOS) and minimize losses. The measurement parameters are observed at each receiving station independently. There are two major methods to determine emitter locations: one-step positioning techniques (centralized processing) and two-step positioning techniques (decentralized processing).In this project, the one-step positioning techniques or direct method is considered. The method requires a two dimensional search which takes the advantage of simple propagation assumptions, that are usually used for radio frequency signals (RF). Direct position estimation that used to estimate angles from all receiving units and location of the emitter, is based on maximum likelihood of the signals intersection point. The triangulation and least square approximation method are then implemented to estimate the emitter positions. Finally the performance of the system was tested with various SNR and estimates emitter locations. The results were compared with the true emitter locations in order to determine the percentage of errors in the estimation. 2015-01 Thesis http://eprints.utm.my/id/eprint/48712/ http://eprints.utm.my/id/eprint/48712/25/UsmanBatureIsyakuMFKE2015.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:90565 masters Universiti Teknologi Malaysia, Faculty of Electrical Engineering Faculty of Electrical Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TK Electrical engineering Electronics Nuclear engineering
spellingShingle	TK Electrical engineering Electronics Nuclear engineering Isyaku, Usman Bature Correlative interferometry for angle of arrival estimation and signal source locating
description	Radio Direction Finding (RDF) refers to the measurement of the direction of the transmitted signal. RDF is used in military intelligence systems, public safety systems, navigation of ships and aircraft. The emitter location can be estimated based on the measured parameters, namely the angle of arrival (AOA), time of arrival (TOA) or time difference of arrival (TDOA). In this project, the square arrangements of four receivers which spaced at 5 km from the centre is considered. The configuration is determined in order to establish line of sight (LOS) and minimize losses. The measurement parameters are observed at each receiving station independently. There are two major methods to determine emitter locations: one-step positioning techniques (centralized processing) and two-step positioning techniques (decentralized processing).In this project, the one-step positioning techniques or direct method is considered. The method requires a two dimensional search which takes the advantage of simple propagation assumptions, that are usually used for radio frequency signals (RF). Direct position estimation that used to estimate angles from all receiving units and location of the emitter, is based on maximum likelihood of the signals intersection point. The triangulation and least square approximation method are then implemented to estimate the emitter positions. Finally the performance of the system was tested with various SNR and estimates emitter locations. The results were compared with the true emitter locations in order to determine the percentage of errors in the estimation.
format	Thesis
qualification_level	Master's degree
author	Isyaku, Usman Bature
author_facet	Isyaku, Usman Bature
author_sort	Isyaku, Usman Bature
title	Correlative interferometry for angle of arrival estimation and signal source locating
title_short	Correlative interferometry for angle of arrival estimation and signal source locating
title_full	Correlative interferometry for angle of arrival estimation and signal source locating
title_fullStr	Correlative interferometry for angle of arrival estimation and signal source locating
title_full_unstemmed	Correlative interferometry for angle of arrival estimation and signal source locating
title_sort	correlative interferometry for angle of arrival estimation and signal source locating
granting_institution	Universiti Teknologi Malaysia, Faculty of Electrical Engineering
granting_department	Faculty of Electrical Engineering
publishDate	2015
url	http://eprints.utm.my/id/eprint/48712/25/UsmanBatureIsyakuMFKE2015.pdf
_version_	1747817457364500480

Correlative interferometry for angle of arrival estimation and signal source locating

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