acoustic transponder
1Acoustic tags — are small sound emitting devices that allow the detection and/or remote tracking of fish in three dimensions. Commonly used to monitor the behavior of fish, studies are conducted in lakes, rivers, tributaries, estuaries and at sea. Acoustic tag… …
2Ultra-short baseline — USBL (Ultra short baseline) is a method of underwater acoustic positioning. A complete USBL system consists of a transceiver, which is mounted on a pole under a ship, and a transponder/responder on the seafloor, a towfish, or on a ROV. A computer …
3Sonar — This article is about underwater sound propagation. For atmospheric sounding, see SODAR. For other uses, see Sonar (disambiguation) …
4Dynamic positioning — Offshore Support Vessel Toisa Perseus with, in the background, the fifth generation deepwater drillship Discoverer Enterprise, over the Thunder Horse Oil Field. Both are equipped with DP systems. Dynamic positioning (DP) is a computer controlled… …
5Multilateration — is a navigation technique based on the measurement of the difference in distance to two or more stations at known locations that broadcast signals at known times. Unlike measurements of absolute distance or angle, measuring the difference in… …
6radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …
7Список электронных систем в вооруженных силах США —   Это служебный список статей, созданный для координации работ по развитию темы.   Данное предупреждение не ус …
8Television in Japan — Television broadcasting in Japan started in 1939,[1] making the country one of the first in the world with an experimental television service. In spite of that, because of the beginning of World War II in the Pacific region, this first… …
9Wilkinson Microwave Anisotropy Probe — WMAP redirects here. WMAP may also refer to either radio station WXNC or WGSP FM. Wilkinson Microwave Anisotropy Probe General information NSSDC ID 2001 027A …
10Medical imaging — This article is about imaging techniques and modalities for the human body. For imaging of animals in research, see Preclinical imaging. Medical imaging Diagnostics A CT scan image showing a ruptured abdominal aortic aneurysm …
