【摘要】 提出了一种适用于时分导频信道的信道估计算法 ,该算法利用多个相邻时隙中导频符号上的瞬时信道估计进行加权 L SM拟合 ,得到数据符号上的信道估计 .仿真结果表明 ,该算法能较好地跟踪多径衰落信道的变化 ,采用该算法的相干 Rake接收机的性能在较大范围多普勒频移下均比较稳定更多还原

【Abstract】 A new channel estimation algorithm based on time multiplexed pilot channel is proposed. By weighted LSM fitting over multi slot, the complex channel coefficients are estimated. Simulation results show that the new algorithm can track the variation of multipath channel better than several other algorithms, such as linear interpolation. The performance of Rake receiver applying the new channel estimation algorithm is basically stable under a wider range of Doppler frequency.更多还原