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This article combines FBLMS algorithm with the blind decision algorithm, and proposes a frequency domain equalization algorithm which can be applied in the ATSC 8VSB system. In addition, with the shortcoming of the poor tracking capability of traditional frequency domain equalization algorithm in dynamic channel, this paper proposes a new equalizer tap update method which can effectively improve the...
A method for estimating the Doppler spread in mobile orthogonal frequency division multiplexing (OFDM) systems is described. The estimation is based on phase message of time domain channel estimation over several OFDM symbols. In OFDM systems, channel estimation is popularly performed in frequency domain. Channel frequency response estimates are affected by noise and inter-carrier interference (ICI)...
In this paper, an efficient and practical design for Doppler spread estimation in mobile OFDM systems are described. A channel auto-correlation function algorithm is proposed for Doppler spread estimation. The Doppler spread estimator is based on finding the auto-correlation function of time domain channel estimates over several OFDM symbols. The estimation performance of the estimator is evaluated...
This paper proposes a new design of low complexity fractionally spaced equalizer to eliminate strong ISI in wireless broadcasting channel of DTTB system. In the design, a CMA+LMS integrated algorithm with effective switching control is adopted, which can gain high convergent speed and well basic performance. Furthermore, a reduced-frequency algorithm is also adopted to deal with the enormous calculation...
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