The application of acoustoelectronic convolvers in phase-locked systems

The possibility of constructing a phased-locked loop (PLL) on an acoustoelectronic base is examined. It is shown that an essential characteristic of a PLL based on an acoustoelectronic convolver is the presence of a constant component in the phase-error signal. The noise band is found to be significantly affected by the length of the nonlinear-interaction region. Furthermore, an increase in the phase error (e.g., due to an increase in the thermal-noise level) leads to a decrease in the noise band of the PLL, which in turn leads to an improvement in the characteristics of the system.