Periodic variation method for blind symbol rate estimation

New algorithm for symbol rate estimation of linear modulation schemes is presented. The algorithm exploits the cyclostationary feature of oversampled receiver signal by a superposed epoch analysis over autocorrelations of received signal obtained in various sampling frequencies. The proposed technique is not affected from frequency selectivity of the channel, since the analyses are carried out in the frequency domain. The performance of proposed algorithm is compared with that of weighted cyclic correlation estimators via simulations and a much better performance is obtained.