FMT系统中信道估计的分析与仿真

Analysis and simulation of channel estimation for FMT system

根据FMT系统的特点,研究了在FMT系统中进行信道估计的方法.在此基础上,改进了基于扩频序列的信道估计方法.理论分析和计算机仿真结果均表明,在时域中对FMT系统进行信道估计简单有效,并且基于扩频序列估计的性能优于LS估计,改进后的估计方法进一步提高了性能.

According to the characteristics of FMT system, the methods of channel estimation were studied.Then an improved proposal for the channel estimation using spread sequence was imposed. Both analyses and computer simulations show that the channel estimation in time domain is simple and efficient, and that the channel estimation using spread sequence can get better performance than Least Square channel estimation. The improved method can further increase the performance.