Title:
METHOD FOR REDUCING ACOUSTIC REFLECTION INFLUENCE IN ACOUSTIC COMMUNICATION TEST OR ACOUSTIC POSITIONING TEST IN WATER TANK, METHOD FOR EVALUATING ACOUSTIC REFLECTION INFLUENCE, AND SYSTEM FOR REDUCING ACOUSTIC REFLECTION INFLUENCE
Document Type and Number:
Japanese Patent JP2023141978
Kind Code:
A
Abstract:
To provide a method for reducing an acoustic reflection influence in an acoustic communication test or an acoustic positioning test in a water tank, by which an acoustic reflection influence caused by a water tank side surface can be diminished relatively easily to perform the acoustic communication test or the acoustic positioning test in the water tank, a method for evaluating the acoustic reflection influence, and a system for reducing the acoustic reflection influence.SOLUTION: A vertical air bubble surface 40 along a water tank side surface 1B is formed by an air bubble 41 supplied from an air bubble generator 10 provided at a lower part of the water tank side surface 1B, and transmission/reception for an acoustic communication test or an acoustic positioning test is performed in a water area on the inner side of the air bubble surface 40 along the water tank side surface 1B, thereby diminishing an acoustic reflection influence caused by the water tank side surface 1B.SELECTED DRAWING: Figure 1
Inventors:
SASANO MASAHIKO
Application Number:
JP2022048597A
Publication Date:
October 05, 2023
Filing Date:
March 24, 2022
Export Citation:
Assignee:
PORT & AIRPORT RES INST
International Classes:
G10K11/16; H04B11/00; H04B17/15; H04B17/29; H04R1/44; H04R29/00
Attorney, Agent or Firm:
Shinichi Abe
Takaaki Ota
Takaaki Ota