Channel estimation method and device

The embodiment of the invention provides channel estimation method and device, relates to the technical field of signal processing, and aims at improving the channel estimation performances. The method comprises the steps of performing first-dimensional wiener filtering according to a frequency domain response value of a pilot resource of a receiving signal in the first dimension, so as to obtain a frequency domain response value of the frequency response values of all resources in the first dimension after the first-dimensional wiener filtering; calculating filter parameters in the second-dimensional wiener filtering according to the frequency domain response value of the frequency domain response values of all resources in the first dimension after the first-dimensional wiener filtering; performing second-dimensional wiener filtering according to the filter parameters and the frequency domain response value of the pilot frequency of the receiving signal in the second dimension, so as to obtain the frequency domain response value of the frequency response values of all resources in the second dimension after the second-dimensional wiener filtering. The method and device are applied to the channel estimation by 1*2D wiener filtering.