摘要
提出一种新的通过离散小波变换在变换域内进行插值的OFDM系统信道估计方法,利用离散小波变换在频域-变换域分析信道估计信号。这种方法可以更好地跟踪信道变化,显著地消除接收到的导频信号中的加性噪声,提高信道估计精度。
A new transform domain channel estimation method on orthognnal frequency division multiplexing systems was given based on discrete wavelet transform. Channel estimation signal was adapted by the discrete wavelet transform in the transform domain. Such method could better track channel change and eliminate the noise remarkably in the received pilot signal, and the precision of channel estimation had been improved.
出处
《太原科技大学学报》
2006年第5期336-339,共4页
Journal of Taiyuan University of Science and Technology
关键词
离散小波变换
变换域
信道估计
正交频分复用
discrete wavelet, transform, transform domain, channel estimation, orthogonal frequency division multiplexing
