TWO-WAY REPEATER AND REPEATING METHOD FOR RADIO COMMUNICATION BETWEEN SOFTWARE DEFINED RADIO MODEMS OF MULTIBAND AND DIFFERENT TYPES OF MODULATION AND COMMUNICATION SYSTEM USING THIS

摘要

PURPOSE: A bidirectional repeater, a relay method and a communications system using the same between a modulation type SDR modems performing bidirectional communication among multiband heterogeneous modems are provided to perform bidirectional communication between multi-band different kind modems. CONSTITUTION: A first terminal(100) transmits a first signal. A relay(200) demodulates the first signal. The relay detects the tone signal from the first signal. The relay controls the bidirectional wireless transmission-reception between different kinds of modems. The relay transmits the second signal. A second terminal(300) demodulates the second signal.