DocumentCode :
3525027
Title :
Phase-based alignment of two signals having partially overlapped spectra
Author :
Tumewu, Albert ; Miyazawa, Kazuyuki ; Aoki, Takafumi ; Yamaguchi, Takahiro J. ; Degawa, Katsuhiko ; Akita, Takayuki
Author_Institution :
GSIS, Tohoku Univ., Sendai
fYear :
2009
fDate :
19-24 April 2009
Firstpage :
3337
Lastpage :
3340
Abstract :
This paper proposes a novel method for aligning two signals using the information contained in the overlapped band. In particular the proposed method aligns two signals by compensating both time-delay and phase-offset in the second signal using the estimated gradient of phase difference in the overlapped band. Compared with other conventional methods, this method can align two signals without requiring a pilot tone or additional hardware. The proposed method was experimentally validated using RF pulses.
Keywords :
delays; gradient methods; phase estimation; signal reconstruction; RF pulses; estimated gradient; overlapped band; partially overlapped spectra; phase difference; phase-based alignment; phase-offset; signal alignment; time-delay; Bandwidth; Delay; Discrete Fourier transforms; Frequency measurement; Hardware; Microwave frequencies; Phase detection; Phase estimation; Radio frequency; Signal reconstruction; analog-digital conversion; microwave frequency conversion; phase estimation; signal reconstruction;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Acoustics, Speech and Signal Processing, 2009. ICASSP 2009. IEEE International Conference on
Conference_Location :
Taipei
ISSN :
1520-6149
Print_ISBN :
978-1-4244-2353-8
Electronic_ISBN :
1520-6149
Type :
conf
DOI :
10.1109/ICASSP.2009.4960339
Filename :
4960339
Link To Document :
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