一种新OFDM系统及其信道盲估计性能的研究

A New OFDM System and Its Blind Channel Estimation Performance

提出了一种采用不等长分组新的OFDM系统。采用不等长分组的好处是不需要加循环前缀,就能在发射序列中引入周期平稳性,因此采用子空间算法可实现信道的盲辨识。还对信道盲估计性能进行了分析。

This paper proposes a new OFDM system with unequalsize blocks.By precoding OFDM blocks with unequalsize,without cyclic prefix,the cyclostationarity is induced at the transmitted sequence.Therefor the subspace algorithm can be used to perform the blind channel identification.Besides,its blind channel estimation performance is also analyzed in this paper.