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Joint Estimation of Phase and Frequency Offsets using a Simple Interpolation of a DFT Algorithm in Burst MPSK Transmission  

Hong, Dae-Ki (연세대학교 전기${\cdot}$전자공학과 정보통신연구실)
Lee, Yong-Jo (LG전자)
Hong, Dae-Sik (연세대학교 전기${\cdot}$전자공학과 정보통신연구실)
Kang, Chang-Eon (연세대학교 전기${\cdot}$전자공학과 정보통신연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.27, no.1A, 2002 , pp. 51-57 More about this Journal
Abstract
In this paper, a simple interpolation technique in a frequency domain is proposed for the discrete Fourier transform(DFT) algorithm. Frequency and phase resolution capabilities of the DFT algorithm can be significantly improved by the proposed interpolation technique without increase of a DFT size(the number of points for the DFT). The new technique uses a diving point in amplitude and phase spectrums. As an application, the technique can be used for joint estimation of fine frequency and phase offsets in burst mode digital transmission. Simulation results show that the joint estimator using the technique is robust to estimation errors.
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