摘要
对基于导频的信道估计中的插值算法,包括线性、高斯、变换域、低通滤波及三次样条插值算法的性能、特点进行分析比较。其中,三次样条插值算法在对复杂信道的估计方面,具有更好的性能和灵活性。最后,给出三次样条插值利于工程实现的简便算法。
Several channel estimation methods based on discrete pilot in wireless OFDM systems are investigated,including linear interpolation,gauss interpolation,cubic spline interpolation,low-pass interpolation and transformer domain interpolation.Emphasis is on the comparision of performance and speciality.Cubic spline interpolation has better flexibility and capability to estimate complicated channel.Finally,the simple method of cubic spline interpolation is provided for the application of project.
出处
《中国电子科学研究院学报》
2011年第4期396-400,共5页
Journal of China Academy of Electronics and Information Technology