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A sensor array is a group of sensors, usually deployed in a certain geometry pattern, used for collecting and processing electromagnetic or acoustic signals. The advantage of using a sensor array over using a single sensor lies in the fact that an array adds new dimensions to the observation, helping to estimate more parameters and improve the estimation performance.
Map of OOI's arrays that continuously collect ocean data. Credit: Center for Environmental Visualization, University of Washington. The Ocean Observatories Initiative (OOI) is a National Science Foundation (NSF) Major Research Facility composed of a network of science-driven ocean observing platforms and sensors (ocean observatories) in the Atlantic and Pacific Oceans.
A chemical sensor array is a sensor architecture with multiple sensor components that create a pattern for analyte detection from the additive responses of individual sensor components. There exist several types of chemical sensor arrays including electronic, optical, acoustic wave, and potentiometric devices.
Information obtained with the research of infrasonic sensing arrays lead to the development of The Unattended Transient Acoustic MASINT Sensor (UTAMS) computer carried by the Aerostat of Persistent Threat Detection System (PTDS), which was an acoustic sensor used to detect the point of origin and the point of impact of missiles, IEDs, and missiles.
Array processing is a wide area of research in the field of signal processing that extends from the simplest form of 1 dimensional line arrays to 2 and 3 dimensional array geometries. Array structure can be defined as a set of sensors that are spatially separated, e.g. radio antenna and seismic arrays .
The first experimental array was a six-element test array laid at Eleuthera in the Bahamas in 1951, followed, after successful experiments with a target submarine, in 1952 by a fully-functional 1,000 ft (304.8 m), forty-hydrophone array. At that time the order for stations was increased from six to nine.
The source is a vertical line array (VLA) of up to 18 source projectors suspended below the vessel. LFA’s transmitted sonar beam is omnidirectional (i.e., a full 360 degrees) in the horizontal (nominal depth of the LFA array center is 120 m [400 ft]), with a narrow vertical beamwidth that can be steered above or below the horizontal.
Able is an MSC-crewed ocean surveillance ship that uses surveillance towed-array sensor system equipment to gather underwater acoustical data. The command operates the ship as part of its Special Mission Ships Program, using her to support the antisubmarine warfare mission of the commanders of the Atlantic and Pacific Fleets.