Результаты (
английский) 2:
[копия]Скопировано!
When you install an additional two-beam antenna A2 (see. Fig.) GDL allows you to control the movement over ground bow and stern that facilitates the management of large-vessel when sailing through the channels in the narrows and when performing mooring operations.
Most of the existing GDL provide a measure of the absolute velocity at depths under the keel up to 200-300 m. At greater depths lag stops working or goes into the measurement of the relative velocity, that is starting to work on a layer of water as a relative lag.
Antennas The CEO is not in favor of the ship's hull. To ensure their replacement without docking the vessel, they are installed in klinketah.
The sources of error of GDL can be: measurement error of the Doppler frequency; changing angles of beam antenna; the presence of the vertical component of the speed of the vessel. The total error for these reasons in modern lag does not exceed 0.5%.
переводится, пожалуйста, подождите..