TRANSMITTING DEVICE, RECEIVING DEVICE, TRANSCEIVER AND ULTRA WIDEBAND ROCK LAYER COMMUNICATION SYSTEM

摘要

Disclosed are a transmitting device, a receiving device, a transceiver and an ultra wideband rock layer communication system, solving the problem that no reliable communication means is available when a serious accident occurs in a mine. The ultra wideband rock layer communication system of the present invention comprises two transceivers, and a pair of a receiving/transmitting electrodes and a receiving/transmitting switch corresponding to each of the transceivers, wherein a wireless channel is formed through the electrodes by using a rock layer as a transmission medium, thereby achieving a time division duplexing communication system. Each of the transceivers comprises a transmitting device and a receiving device. The transmitting device comprises a channel coding unit, an M-ary spread spectrum unit, a waveform forming unit, and a class-E power amplifier. An M-ary spread spectrum code has a chip value being a ternary pseudo random code of -1, 0 or 1. The class-E power amplifier is a push-pull power amplifier having an output transformer. The present invention has advantages of small signal duty ratio, high peak-to-average power ratio, good bit error performance, and long transmission distance, thereby providing a reliable communication means for mine disaster relief.