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Side-scan uses a sonar device that emits conical or fan-shaped pulses down toward the seafloor across a wide angle perpendicular to the path of the sensor through the water, which may be towed from a surface vessel or submarine (called a “towfish”), or mounted on the ship's hull.
Side scan sonar technology Martin Klein (born April 5, 1941) is an American engineer and inventor. He worked in the development of the side scan sonar, a tool used in maritime archaeology, deep-sea and coastal survey, marine geology, offshore engineering and military mine defense.
Side Scan Sonar systems produce images by forming angular “beams”. Beam width is determined by length of the sonar array, narrower beams resolve finer detail. Longer arrays with narrower beams provide finer spatial resolution.
An important general rule for side-scan sonar searches, regardless of what search pattern is used, is to orient the long dimension of the search area so that it is approximately parallel with the depth contours, which minimizes the need to make changes of the towfish altitude to maintain a reasonably consistent altitude (height above the bottom ...
The side-scan sonar is useful for scientists as it is a quick and efficient way of collecting imagery of the sea floor, but it cannot measure other factors, such as depth. [11] [12] Therefore, other depth measuring sonar devices are typically accompanied with the side-scan sonar to generate a more detailed survey. [11]
The AN/UQQ-2 Surveillance Towed Array Sensor System (SURTASS), colloquially referred to as the ship's "Tail", is a towed array sonar system of the United States Navy. SURTASS Twin-Line consists of either the long passive SURTASS array or the Twin-line array, consisting of two shorter passive arrays towed side by side.
Diana is one of two side-scan sonar systems on board Nautilus. It is used to create maps of the seafloor and to identify targets of interest that ROVs Hercules and Argus investigate in more detail. Diana is a side-scan sonar tow-fish that uses dual 300 and 600 kHz frequencies, with a range of approximately 200 meters on either side of the towfish.
The AN/AQS-20 naval mine hunting sonar systems will be employed for deeper mine threats. The "Q-20", as it is commonly called, is an underwater towed body containing a high resolution, side-looking, multi-beam sonar system used for minehunting along the ocean bottom. This rapidly deployable system provides real-time sonar images to operators to ...