MB-OFDM-UWB系统基于时域扩展的盲频率跟踪算法

doi:10.3969/j.issn.1000-436x.2013.04.016

Abstract

Abstract:

A blind carrier frequency offset (CFO) tracking algorithm based on time-domain spreading (TDS) was proposed for multiband orthogonal frequency division multiplexing ultra wide band systems.The scheme uses data symbols and the mapped TDS ones to develop time and frequency-domain estimators and tracking loops respectively.Simulation results indicate that the proposed scheme has a better performance in tracking accuracy than pilots-aided ones.Under the SNR of 10dB,the mean square root errors of the residual CFO reach 2 10^-4,and the bit error rate of the system is 10^-6× of magnitude.

Key words: MB-OFDM, UWB, time-domain spreading, synchronization, carrier frequency offset

Li-jun GE,Hong WU. Blind frequency tracking based on time-domain spreading for MB-OFDM-UWB systems[J]. Journal on Communications, 2013, 34(4): 138-143.

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References 12

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Blind frequency tracking based on time-domain spreading for MB-OFDM-UWB systems

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