水中超音波の水面反射による多重伝搬問題の解析とその応用

抄録

One of the most important problems, encountered in the analysis and design of underwater information transmission systems using ultrasonic waves, is how to quantitatively evaluate the effect of multi-path propagation due to surface reflection The author was provided with a probabaistic model to deal with the multi-path propagation problem. For the purpose of demonstrating the applicability of the model, the experiments were carried out in an unechoic water tank with a free surface. The results and the statistical analysis obtained by using a digital computer are described It has become evident that the multi-path propagation plays an important role in the trade-off among various design parameters. Therefore the concepts developed are to be applied to the design of an underwater telemetry system.