Title :
A New Frequency Pre-estimation Aided Carrier Recovery Algorithm for Multimodal Signal System
Author :
Wang Ranran ; Wang Botao ; Lu Yan
Author_Institution :
Coll. of Electron. & Control Eng., Beijing Univ. of Technol., Beijing, China
Abstract :
Multimedia System has been widely developed. This paper proposes a new kind of fast Fourier transformation (FFT) and a carrier recovery loop for accurate fine tracking. This paper uses the FFT carrier frequency offset to pre-estimate it that corrects the big frequency firstly, based on this, it uses the carrier frequency ring circuit to correct the small frequency offset. Comparing with other methods, its estimation is more accurate.
Keywords :
channel estimation; fast Fourier transforms; modulation; multimedia communication; radiocommunication; FFT carrier frequency offset; carrier recovery loop; fast Fournier transforms; frequency preestimation aided carrier recovery algorithm; multimedia system; multimodal signal system; Multimedia communication; Signal processing; FFT; carrier recovery; frequency offset pre-estimation;
Conference_Titel :
Intelligent Information Hiding and Multimedia Signal Processing, 2013 Ninth International Conference on
Conference_Location :
Beijing
DOI :
10.1109/IIH-MSP.2013.49
