Speed estimating method and speed estimating device

The embodiment of the invention discloses a speed estimating method and a speed estimating device, wherein the method comprises the following steps: obtaining the frequency domain channel response of each symbol according to time domain signals; obtaining the correlation degree of the channel response to the time according to the frequency domain channel responses of a plurality of symbols; obtaining the estimating value of the Rice factor of the current channel according to the frequency domain channel responses of a plurality of symbols; and calculating the estimating value of the traveling speed according to the correlation degree of the channel response to the time and the estimating value of the Rice factor of the current channel. The device comprises a first obtaining module, a second obtaining module, a third obtaining module and an estimating module. In the embodiment of the invention, different channel types are distinguished, and different calculating methods are used to estimate the corresponding traveling speeds, thereby greatly enhancing the estimating accuracy of the traveling speed.