The properties of echoes and transmitted waves from a fish body in megahertz bands were
investigated to construct a fish detection method in a narrow path using a simple …

In this study, we evaluated the validity of detecting free-swimming fish using echoes from the
fish, transmitted waves, and backwall echoes propagated through the fish, using a pair of …

Here we aimed to enhance azimuth estimation to accurately locate a communication
partner's position by utilizing a low-resolution underwater acoustic lens system for …

This paper proposes a procedure for measuring transmitter–receiver (Tx–Rx) distance using
acoustic communication signals to realize communication and positioning underwater with …

The paper is aimed at ensuring efficiency of the underwater acoustic OFDM modem for
mobile units by means of the Doppler effect correction module. The Doppler effect correction …

The purpose of this paper is to examine the feasibility of indoor acoustic positioning by
measuring transmission distance and speed while simultaneously transmitting information …

Настоящая работа направлена на совершенствование модема гидроакустической
связи, использующего сигналы с OFDM. Цель работы-снижение вычислительной …