OFDM系统信道估计算法比较，比较了LS，ＭＭＳＥ，Ｌｍｍｓｅ的性能差异。-Channel estimation algorithm for OFDM system compares the LS, MMSE, Lmmse performance differences.

用小波变换思想,提出一种基于小波去噪的多输入多输出正交频分复用(MIMO-OFDM)系统信道估计方法。该方法首先利用最小二乘(LS)方法进行信道估计,然后对估计后的结果进行小波去噪处理。与传统最小二乘信道估计方法相比,该方法不需要预先知道信道的统计特性,信道估计性能有明显提高。-Based on wavelet transform,a method for MIMO-OFDM channel estimation with noise reduction is given,which is di

OFDM 系统信道估计LS方法和LMMSE方法的性能比较。由于LMMSE利用了信道的相关性信息，它的性能比LS好。-OFDM system channel estimation performance comparison of the LS method and the LMMSE method. Due to the the LMMSE use of relevant information of the channel, its performance is better than the