For orthogonal frequency division multiplexing (OFDM) wireless communication, the system throughput and datarate are usually limited by pilots, especially in a
<正>We give here an overview of the orbital-free density functional theory that is used for modeling atoms and molecules.We review typical approximations to the
Order-recursive least-squares(ORLS)algorithms are applied to the prob-lems of estimation and identification of FIR or ARMA system parameters where a fixedset of
Opto-electronic molecular devices could be classified into three kinds.Theelementary structures of them are presented in this paper.It is pointed out that the e