title: Experimental realization of digital sonar communication
abstract: In this article it is presented a methodology of the experimental transmition of digital data through the hydroacoustic channel. A signal with quadrature phase-shift keying and spread-spectrum is used. It is presented a scheme of measuring stand, analytical expression for the emitted signal, signal detection methodology, graphics of radiated and received signals, the time dependence of the signal frequency, graphic of correlation of the received signal with the reference impulse. Data were trans
journal: Electronics and Communications