Channel estimation method and device

The invention discloses a channel estimation method and device, which are used for improving channel estimation accuracy and further improving the performance of a receiver. The channel estimation method comprises the steps of determining an equivalent pilot frequency sequence through a historical effective frequency offset value; utilizing the equivalent pilot frequency sequence to determine a sequence for re-correlation; and utilizing the sequence for re-correlation to carry out a complex correlation calculation for channel estimation. 本申请公开了种信道估计方法及装置，用以提高信道估计准确性，从而提高接收机性能。本申请提供的种信道估计方法，包括：通过历史有效频偏值，确定等效导频序列；利用所述等效导频序列，确定用于复相关的序列；利用所述用于复相关的序列，进行信道估计的复相关计算。