<FONT face=Verdana>To make accurate estimation of the channel parameters for the fluctuant burst channel

a novel channel estimation algorithm based on iteration is proposed. By compensating estimation error of the fast correlation estimation algorithm

accurate channel parameters estimation is realized

and theoretical conclusions of the relation between compensation times and estimation performance are proved. Simulations results and performance analysis show that the proposed algorithm has the advantages of small estimation error

low computational complexity and anti multipath distortion. It can estimate the channel parameters efficiently in low SNR (less than 10 dB) situations

and improve the performance of the fast correlation channel estimation algorithm efficiently in high SNR (more than 10dB) situations.