Результаты (
английский) 2:
[копия]Скопировано!
The principle of operation of the hydroacoustic correlation lag (FCL) consists of measuring the time shift between identical acoustic signals received by two ship's antennas spaced a certain distance, is received from a moving ship signal reflected from the ground. At depths of 200 m. GCR measures the speed over the ground at the same time indicates the depth under the keel. At greater depths, it automatically goes to work through the water. GCR advantages with respect to the independence of the GDL are indications of the speed of sound in water and more reliable work on pitching.
переводится, пожалуйста, подождите..
