In this paper the Doppler shift formula is derived from Galileo transformation and lorentz transformation (the transverse Doppler shift formula included) and the difference between the Doppler effect in sound and the Doppler effect in light is discussed.

• 由伽利略变换和洛仑兹变换导出了多普勒频移公式(包括横向多普勒频移公式)。 讨论了声学多普勒效应和光学多普勒效应的异同。