一種用于OFDM符號(hào)定時(shí)跟蹤的盲估計(jì)算法
A Blind Estimation of Symbol Timing Tracking Algorithm for OFDM
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摘要: 利用具有循環(huán)前綴和循環(huán)后綴的OFDM幀結(jié)構(gòu)，該文提出了一種新的符號(hào)定時(shí)跟蹤盲估計(jì)算法。理論分析及仿真表明，無(wú)論在AWGN還是多徑衰落信道條件下，該定時(shí)算法估計(jì)的均方差都小于ML算法。Abstract: A new blind symbol timing-tracking algorithm is proposed, using the special OFDM frame structure with cyclic prefix and cyclic postfix. Analysis and simulation results show that the mean square error of timing offset estimation for proposed method is superior to that of Maximum Likelihood (ML) method.
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