The invention discloses an
underwater talkback
system based on an
optical fiber sensing technology. The
system comprises an
audio signal input unit, a transmitting
signal processing circuit, a transmitting terminal of a transmitting
transducer and a receiving terminal including a receiving
signal processing circuit and an
audio signal output unit. The receiving terminal is provided with an
optical fiber light path containing an
optical fiber probe the optical
fiber light path is used for completing detection over
submarine sound signals. The receiving
signal processing circuit is connected with the
audio signal output unit and the optical
fiber light path respectively. Acoustical signals are amplified through the transmitting terminal and then drive the transmitting
transducer, the transmitting
transducer transmits the amplified acoustical signals out, the acoustical signals reach the receiving terminal through the spread of water, the
optical fiber probe of the receiving terminal completes signal receiving, and the unidirectional transmission of the signals is achieved. The transmitting terminal transmits acoustic
waves, the acoustic
waves reach the receiving terminal through the spread of the water, the unidirectional receiving of the signals is achieved, and the talkback process is achieved. According to the
underwater talkback
system based on the
optical fiber sensing technology, the
optical fiber sensing technology is used for achieving the receiving of the
submarine sound signals, the
optical fiber probe is adopted to replace a receiving transducer on the receiving terminal, a new receiving mode is formed, and thus the multiaspect performance of the
underwater talkback system can be improved.