A Carrier Frequency Estimation Algorithm Combined by Rife Algorithm and High-Order Cyclic Cumulants

摘要

The carrier frequency estimation algorithm based on high-order cyclic cumulants does not need a training sequence. Due to the fact that the high-order cycle can suppress the stationary and non-stationary Gaussian noise, the algorithm is tolerant to the noise mentioned above. The computation of the algorithm is deduced in this paper. It shows that if large searching range of carrier frequency and high frequency resolution are required, the computation will be great In order to solve the conflict between the high-performance and the computation, an algorithm which combine the Rife algorithm and highorder cyclic cumulants is introduced in this paper. The simulations show that the algorithm proposed in this paper can reduce the computation considerably, as the performance of frequency estimation is hardly changed.