Efficient DFT based carrier recovery for satellite DVB receiver

An efficient non-data-aided carrier recovery is presented in this paper, which can be applied in digital satellite receivers. It can acquire large carrier frequency offsets at very low signal-to-noise ratio (SNR). The proposed two-step scheme consists of a low-resolution discrete complex Fourier tra...

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Bibliographic Details
Published in2007 7th International Conference on ASIC pp. 826 - 829
Main Authors Li Qing, Wu Chuan, Jiang Zhou, Liu Zhi, Deng Yunsong, Zeng Xiaoyang
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2007
Subjects
Additive white noise
Digital video broadcasting
Discrete Fourier transforms
Field-flow fractionation
Fourier transforms
Frequency estimation
Satellite broadcasting
Signal to noise ratio
Timing
Tracking loops
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Summary:An efficient non-data-aided carrier recovery is presented in this paper, which can be applied in digital satellite receivers. It can acquire large carrier frequency offsets at very low signal-to-noise ratio (SNR). The proposed two-step scheme consists of a low-resolution discrete complex Fourier transform (DFT) to counteract carrier frequency offset initially, and a carrier recovery loop for accurate fine tracking. In order to reduce the hardware complexity, we adopt software controller to assist coarse frequency estimation. Experimental results demonstrate the high performance and low complexity of the proposed scheme.
ISBN:1424411319
9781424411313
ISSN:2162-7541
2162-755X
DOI:10.1109/ICASIC.2007.4415758