单载波频域均衡系统的时域盲信道估计方法

补零单载波频域均衡系统的盲信道估计方法利用系统固有的补零信息，在时域实现了频率选择性信道基于子空间的盲估计．证明了在符号定时精确已知时，时域估计方法和之前提出的频域估计方法的等价性，但与频域估计方法相比，时域估计表达武明显简单．仿真和分析显示该方法的性能优干传统的过采样盲信道估计方法，且对信道阶数过估计不敏感．

Blind channel estimation of SC-FDE systems by exploiting zero-padding: time domain approach

A subspace based blind channel estimation approach for zero-padding single carrier frequency domain equalization(ZP-SC-FDE) systems is presented,which estimates the frequency-selective channel blindly in the time domain,based on zero-padding technology.Equivalence of the proposed method and the frequency domain estimation method proposed previously is proved.However the time domain method is simpler than the frequency domain method.Computer simulations show that the performance of proposed method is better than that of conventional oversampling methods,and it is robust to over-estimated channel order.