By analyzing the relationship between basis expansion model (BEM) and Doppler spectrum, the authors propose a scheme based on fractional BEM for the estimation of doubly selective channel parameters.

• 摘要通过分析复指数基扩展模型(BEM)与多普勒扩展频谱之间的关系，提出一种基于分数倍基扩展模型的双选信道估计方法。