An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator

In the satellite navigation system, multipath signal propagation effect is the main source of errors to the receiver positioning accuracy. Research has been done on multipath mitigation algorithms but their implementation towards suboptimal or optimal receiver is in demand. One of the key multipath...

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Main Authors:	Fa, Ji Yuan, Jie, Tian Lian, Yan, Sun Xi, Suqing, Yan, Kamarul Hawari, Ghazali, Khatuni, S.
Format:	Article
Language:	English
Published:	Universiti Teknikal Malaysia Melaka (UTeM) 2018
Subjects:	TK Electrical engineering. Electronics Nuclear engineering
Online Access:	http://umpir.ump.edu.my/id/eprint/20932/ http://umpir.ump.edu.my/id/eprint/20932/ http://umpir.ump.edu.my/id/eprint/20932/1/An%20improved%20Multipath%20Estimating%20Delay-Lock-Loop.pdf

id	ump-20932
recordtype	eprints
spelling	ump-209322018-03-29T04:58:38Z http://umpir.ump.edu.my/id/eprint/20932/ An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator Fa, Ji Yuan Jie, Tian Lian Yan, Sun Xi Suqing, Yan Kamarul Hawari, Ghazali Khatuni, S. TK Electrical engineering. Electronics Nuclear engineering In the satellite navigation system, multipath signal propagation effect is the main source of errors to the receiver positioning accuracy. Research has been done on multipath mitigation algorithms but their implementation towards suboptimal or optimal receiver is in demand. One of the key multipath mitigation algorithms is Multipath Estimating DelayLock-Loop (MEDLL), which suffers from large amount of computational complexity, poor real-time performance and error accumulation. To overcome these drawbacks, an improved MEDLL algorithm is proposed here by combining it with the Teager-Kaiser (TK) algorithm and residual signal estimation -- named TK-MEDLL. Simulation results show that the algorithm can accurately estimate the number of multipath signal components, and improve the estimation accuracy of the signal parameters. Besides, TK-MEDLL can separate the multipath from the composite signal, restore the direct signal, and thus effectively suppress the multipath signal. Hence, the time delay estimation accuracy is improved by 0.015chip, whereas the estimation error is reduced by 5%. Overall, the algorithm reduces the computational complexity and improves the real-time performance of signal processing, which is of great significance for satellite communications. Universiti Teknikal Malaysia Melaka (UTeM) 2018 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/20932/1/An%20improved%20Multipath%20Estimating%20Delay-Lock-Loop.pdf Fa, Ji Yuan and Jie, Tian Lian and Yan, Sun Xi and Suqing, Yan and Kamarul Hawari, Ghazali and Khatuni, S. (2018) An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator. Journal of Telecommunication, Electronic and Computer Engineering (JTEC), 10 (1-2). pp. 49-53. ISSN 2180-1843 http://journal.utem.edu.my/index.php/jtec/article/view/3320
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TK Electrical engineering. Electronics Nuclear engineering
spellingShingle	TK Electrical engineering. Electronics Nuclear engineering Fa, Ji Yuan Jie, Tian Lian Yan, Sun Xi Suqing, Yan Kamarul Hawari, Ghazali Khatuni, S. An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
description	In the satellite navigation system, multipath signal propagation effect is the main source of errors to the receiver positioning accuracy. Research has been done on multipath mitigation algorithms but their implementation towards suboptimal or optimal receiver is in demand. One of the key multipath mitigation algorithms is Multipath Estimating DelayLock-Loop (MEDLL), which suffers from large amount of computational complexity, poor real-time performance and error accumulation. To overcome these drawbacks, an improved MEDLL algorithm is proposed here by combining it with the Teager-Kaiser (TK) algorithm and residual signal estimation -- named TK-MEDLL. Simulation results show that the algorithm can accurately estimate the number of multipath signal components, and improve the estimation accuracy of the signal parameters. Besides, TK-MEDLL can separate the multipath from the composite signal, restore the direct signal, and thus effectively suppress the multipath signal. Hence, the time delay estimation accuracy is improved by 0.015chip, whereas the estimation error is reduced by 5%. Overall, the algorithm reduces the computational complexity and improves the real-time performance of signal processing, which is of great significance for satellite communications.
format	Article
author	Fa, Ji Yuan Jie, Tian Lian Yan, Sun Xi Suqing, Yan Kamarul Hawari, Ghazali Khatuni, S.
author_facet	Fa, Ji Yuan Jie, Tian Lian Yan, Sun Xi Suqing, Yan Kamarul Hawari, Ghazali Khatuni, S.
author_sort	Fa, Ji Yuan
title	An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
title_short	An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
title_full	An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
title_fullStr	An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
title_full_unstemmed	An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator
title_sort	improved multipath estimating delay-lock-loop method based on teager-kaiser operator
publisher	Universiti Teknikal Malaysia Melaka (UTeM)
publishDate	2018
url	http://umpir.ump.edu.my/id/eprint/20932/ http://umpir.ump.edu.my/id/eprint/20932/ http://umpir.ump.edu.my/id/eprint/20932/1/An%20improved%20Multipath%20Estimating%20Delay-Lock-Loop.pdf
first_indexed	2023-09-18T22:30:29Z
last_indexed	2023-09-18T22:30:29Z
_version_	1777416252282634240

An improved Multipath Estimating Delay-Lock-Loop method based on Teager-Kaiser operator

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