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An echo canceller for DVB-T/H on-channel repeaters

An echo canceller for DVB-T/H on-channel repeaters

Nasr, Karim M. ORCID: 0000-0002-8604-6274, Cosmas, John, Bard, Maurice and Gledhill, Jeff (2007) An echo canceller for DVB-T/H on-channel repeaters. In: 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring. IEEE, pp. 639-643. ISBN 1424402662 ISSN 1550-2252 (doi:https://doi.org/10.1109/VETECS.2007.142)

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Abstract

This paper investigates the design and performance of an FIR echo canceller for on channel repeaters in DVB-T/H network within the framework of the PLUTO project. The possible approaches for echo cancellation are briefly reviewed and the main guidelines for the design of such systems are presented. The main system parameters are discussed. The performance of a FIR echo canceller based on an open loop approach for channel estimation is tested for different radio channel conditions and for different number of taps of the FIR filter. It is shown that a minimum number of taps is recommended to achieve a certain mean rejection ratio or isolation depending on the type of channel. The expected degradation in performance due to the use of fixed point rather than floating point arithmetic in hardware implementation is presented for different number of bits.

Item Type: Conference Proceedings
Title of Proceedings: 2007 IEEE 65th Vehicular Technology Conference - VTC2007-Spring
Uncontrolled Keywords: DVB-T/H on-channel repeaters, FIR echo canceller, channel estimation, radio channel conditions, mean rejection ratio, floating point arithmetic
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Faculty / Department / Research Group: Faculty of Engineering & Science
Faculty of Engineering & Science > Department of Engineering Science
Last Modified: 02 Oct 2019 12:36
Selected for GREAT 2016: None
Selected for GREAT 2017: None
Selected for GREAT 2018: None
Selected for GREAT 2019: None
URI: http://gala.gre.ac.uk/id/eprint/25338

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