A modified blind OFDM systems parameters estimation method

This paper was proposed a modified blind OFDM system parameters estimation method. The method was based on the periodicity of mobile autocorrelation function, and it estimated the OFDM symbol duration by using of the cyclic frequency test. Moreover, it limited the searching range of cyclic frequency which reduced the computational complexity. Simulation results show that the proposed time-parameter estimation algorithms could obtain good performance in low SNR and multi-path channel condition, which are also proved robust to phase offset and frequency offset.