The study of eigenvalue-construct method used for signal distinguish of OFDM multi-path system
Zhou Yan, Donglin Su · 2005
This paper analyzes the signal environment of the OFDM multipath channel. We propose a method for distinguishing multipath signals based on multiuser detection in CDMA. And on the basis of information of frame synchronization of OFDM, an eigenvalue-construction method such as ESPRIT and MUSIC has been used jointly with a pseudo-data correlative matrix method to estimate signal DOA, thus it could be used in user identification. The theoretical analysis and computer simulations help confirm its effectiveness in multiuser identification and signal distinguishing in OFDM systems.