运动信号源的电磁波信号频率偏移

Frequency Shift of Electromagnetic Signal on Moving Transmitter

根据狭义相对论理论对电磁波信号发射机和检测器都相对地球运动时的频率偏移进行了定量分析;并讨论了信号发射机运动、检测器相对地球静止,信号发射机与检测器相向及相背运动时的频移情况。在信号发射机与检测器的速度都远远小于光速时,本文所得出的频移公式退化成经典多普勒频移公式。

This paper analyzes,according to the special theory of relativity,the frequency shift of electromagnetic signal when the signal transmitter and detector are both moving at high speed relatively to the earth. Several special conditions are especially discussed,such as,that only the signal transmitter is moving but its detector is stationary relatively to the earth,or that the signal transmitter and its detector are moving forward or backward. If the speed of the moving signal transmitter and its detector are both much lower compared with the speed of light,the formulae in the paper become naturally the formulae of Doppler Effect in classical physics.