Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning

This project presents an underwater acoustic positioning system based on time difference of arrival (TDOA) measurement. In this research, an underwater communication device is developed and fast Fourier transform (FFT) overlap algorithm is proposed in order to achieve the objectives. The TDOA techni...

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Main Author:	Tan, Chee Sheng
Format:	Thesis
Language:	English
Published:	2019
Subjects:	T Technology
Online Access:	http://eprints.usm.my/51598/1/Time%20Difference%20Of%20Arrival%20Estimation%20Using%20Fast%20Fourier%20Transform%20Overlap%20For%20Underwater%20Positioning.pdf
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id	my-usm-ep.51598
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spelling	my-usm-ep.515982022-02-21T04:45:26Z Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning 2019-06-01 Tan, Chee Sheng T Technology TK Electrical Engineering. Electronics. Nuclear Engineering This project presents an underwater acoustic positioning system based on time difference of arrival (TDOA) measurement. In this research, an underwater communication device is developed and fast Fourier transform (FFT) overlap algorithm is proposed in order to achieve the objectives. The TDOA technique is used to estimate the position of an underwater target. The TDOA estimation is derived based on the intensity of a received signal with the frequency of interest. An extraction of a signal from a receiver is performed by using digital signal processing algorithms. The FFT is used to convert the receiving signal from time domain into frequency domain for extraction of the signal information (relevant frequency and amplitude). Hence, the TDOA estimation can be obtained from the frequency information using an overlap transform processing. Experimental results are presented to demonstrate the capabilities of the proposed algorithms. The results indicate that the proposed FFT with 100% overlap has successfully improved an accuracy with percentage error of 1.71% for the TDOA estimation. Overall, the positioning system using FFT overlap able to provide an accurate positioning estimation. 2019-06 Thesis http://eprints.usm.my/51598/ http://eprints.usm.my/51598/1/Time%20Difference%20Of%20Arrival%20Estimation%20Using%20Fast%20Fourier%20Transform%20Overlap%20For%20Underwater%20Positioning.pdf application/pdf en public masters Universiti Sains Malaysia Pusat Pengajian Kejuruteraan Elektrik & Elektronik
institution	Universiti Sains Malaysia
collection	USM Institutional Repository
language	English
topic	T Technology T Technology
spellingShingle	T Technology T Technology Tan, Chee Sheng Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
description	This project presents an underwater acoustic positioning system based on time difference of arrival (TDOA) measurement. In this research, an underwater communication device is developed and fast Fourier transform (FFT) overlap algorithm is proposed in order to achieve the objectives. The TDOA technique is used to estimate the position of an underwater target. The TDOA estimation is derived based on the intensity of a received signal with the frequency of interest. An extraction of a signal from a receiver is performed by using digital signal processing algorithms. The FFT is used to convert the receiving signal from time domain into frequency domain for extraction of the signal information (relevant frequency and amplitude). Hence, the TDOA estimation can be obtained from the frequency information using an overlap transform processing. Experimental results are presented to demonstrate the capabilities of the proposed algorithms. The results indicate that the proposed FFT with 100% overlap has successfully improved an accuracy with percentage error of 1.71% for the TDOA estimation. Overall, the positioning system using FFT overlap able to provide an accurate positioning estimation.
format	Thesis
qualification_level	Master's degree
author	Tan, Chee Sheng
author_facet	Tan, Chee Sheng
author_sort	Tan, Chee Sheng
title	Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
title_short	Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
title_full	Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
title_fullStr	Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
title_full_unstemmed	Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning
title_sort	time difference of arrival estimation using fast fourier transform overlap for underwater positioning
granting_institution	Universiti Sains Malaysia
granting_department	Pusat Pengajian Kejuruteraan Elektrik & Elektronik
publishDate	2019
url	http://eprints.usm.my/51598/1/Time%20Difference%20Of%20Arrival%20Estimation%20Using%20Fast%20Fourier%20Transform%20Overlap%20For%20Underwater%20Positioning.pdf
_version_	1747822085596512256

Time Difference Of Arrival Estimation Using Fast Fourier Transform Overlap For Underwater Positioning

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