27/03/2023 11:43 PM | Click to read full article
In order to locate hostile submarines, active sonar is used whereby the submarine transmits a sound pulse and calculates the time it takes to reach the target and be reflected back. According to Chinese researchers, the tile-shaped device developed by them can analyze an enemy’s sonar frequency and produce opposing sound waves so that the sonar operator will mistake the submarine for water, a report said.
