| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide methods and apparatus for enhancing estimation of channel response in a wireless communication system. <P>SOLUTION: An apparatus comprises: a module to select one or more channels and determine an initial channel estimate on the basis of a received signal; a transformation module adapted to transform the initial channel estimate into an initial impulse response estimate; a filtering module adapted to generate a truncated initial impulse response estimate by setting to zero the samples in the initial impulse response estimate; and a maximum likelihood channel estimating module adapted to compute a time domain weighted impulse response estimate using the truncated time domain impulse response estimate for the selected channel and to compute a maximum likelihood channel estimate for the selected channel by transforming the time domain weighted impulse response estimate into the frequency domain. <P>COPYRIGHT: (C)2013,JPO&INPIT |
