DEVICE AND METHOD FOR SEPARATING OVERLAPPED FREQUENCY TRANSMITTING / RECEIVING SIGNAL, AND SATELLITE COMMUNICATION SYSTEM USING THIS

摘要

PURPOSE: A device for separating overlapped frequency transceiving signal and a satellite communication using the same are provided to use frequency twice in satellite communication which has inefficient frequency resource. CONSTITUTION: A phase/delay estimator(140) estimates phase error and transmission path delay time from a duplicated signal. A phase/delay controller(130) performs FIFO(First In First Out) timing control. A modulation signal generator(110) converts the compensated transmission data into a modulated signal. A pre-distorter(120) distorts the modulated signal. A frequency shifter(150) performs frequency shift for the pre-distorted modulated signal. An adder(160) eliminates the frequency shifted modulated signal from the overlapped signal.