Presentation 2015-02-18
Improved Accuracy Frequency Offset Estimation for a Poly-Polarization Multiplexing System
Julian WEBBER, Masanori YOFUNE, Kazuto YANO, Naoya KUKUTSU, Tomoaki KUMAGAI,
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Abstract(in English) The current generation of frequency offset estimators for satellite communications generally requires significant frame averaging to achieve sufficient estimation performance particularly with the efficient short unique word (UW) lengths. However this requirement can be significantly reduced by distributing the UW symbols throughout the frame, and in this paper, we compare the offset estimation performances of the L&R and Fitz algorithms with application to a poly-polarization multiplexing (PPM) system. Although in general increasing the UW separation reduces the offset range, we demonstrate in this paper that the performance benefits from UW separation allow the correlation length to be reduced which compensates for this reduced offset range. By using these techniques, we show that the performance of the estimator with short UW length of 32 symbols is able to achieve the same performance as the estimator with long UW length 256 symbols assuming a 28 kHz offset. Finally, a technique to select an optimized value of the frame averaging size is described.
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Keyword(in English) satellite communications / polarization multiplexing / frequency offset estimation / offset range
Paper # SAT2014-55
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Committee SAT
Conference Date 2015/2/11(1days)
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Registration To Satellite Telecommunications (SAT)
Language ENG
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improved Accuracy Frequency Offset Estimation for a Poly-Polarization Multiplexing System
Sub Title (in English)
Keyword(1) satellite communications
Keyword(2) polarization multiplexing
Keyword(3) frequency offset estimation
Keyword(4) offset range
1st Author's Name Julian WEBBER
1st Author's Affiliation ATR Wave Engineering Laboratories()
2nd Author's Name Masanori YOFUNE
2nd Author's Affiliation ATR Wave Engineering Laboratories
3rd Author's Name Kazuto YANO
3rd Author's Affiliation ATR Wave Engineering Laboratories
4th Author's Name Naoya KUKUTSU
4th Author's Affiliation ATR Wave Engineering Laboratories
5th Author's Name Tomoaki KUMAGAI
5th Author's Affiliation ATR Wave Engineering Laboratories
Date 2015-02-18
Paper # SAT2014-55
Volume (vol) vol.114
Number (no) 449
Page pp.pp.-
#Pages 6
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