Method and repeater for transmitting and receiving signal in high-speed moving environment

The present invention provides a method for high-speed mobile environment to achieve real signal transceiving, comprising the steps of: initialize: Set PLL VCO frequencies of the two branches of the same, and are provided from the main VCO , following the frequency of the main voltage controlled oscillator output signal frequency of the VCO output signal from the symmetrical variation; after initialization is completed, the following specific cycle signal transceiving method: receiving two signals from the input filter, the use of two lock phase slip ring voltage controlled oscillator and a mixer, to the two input signals for analysis and screening, the modulation and demodulation after the combined output to the drive. The present invention is by analyzing the cells after pre-demodulated signal, and the VCO frequency by dynamically changing the primary compensation caused by the Doppler shift, to eliminate the signal transceiver Doppler shift; to solve the frequency difference before and after the switching cell problem.