OFDM系统中基于训练序列的参数信道估计算法的改进

A New Improved Training Sequence Aided Parameter Channel Estimation Method for OFDM Systems

针对OFDM通信系统中基于训练序列的常规信道估计算法存在矩阵求逆过程,使算法计算量过大的现象,提出了一种基于最优训练序列的信道估计简化算法。该算法通过对训练序列的最优设计,避免了矩阵求逆,大大降低了算法的复杂度和运算量。通过仿真实验,表明优化后的信道估计算法具有更好的性能和实际应用价值。

Traditional training sequence aided channel estimation for OFDM system suffers great computational work. An improved channel estimation method is proposed. The complexity and computational work of method are greatly reduced by utilizing optimal design of the training sequence. Simulation results show that the optimized parameter channel estimation method has better performance and practical application worth.