中文摘要：

在突发信道中,针对接收信噪比大范围波动的情况下对于信道参数快速、稳定、准确获取的系统要求,提出一种基于迭代补偿的快速突发信道估计算法.该算法根据快速相关估计结果对其估计偏差进行补偿,实现信道参数的准确估计,并得到了补偿次数和估计性能的相关结论.理论分析和仿真表明,所提算法在低信噪比（小于10dB）情况下能准确的估计出信道参数,而且在高信噪比（大于10dB）的情况下能够有效改善快速相关算法的估计性能,具有估计误差小、计算复杂度低和抗多径等特点.

英文摘要：

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.