We have a client company that is about to go into production of a small, towed
acoustic array that can localize marine mammals in an area.
For this reason, an acquisition and processing system for an
acoustic array based on MEMS microphones is reduced to two basic elements: MEMS microphone and a processing system usually based on an FPGA (Field Programmable Gate Array)
Simley, Development of an
acoustic array for wind turbine aeroacoustic noise analysis [M.S.
So far, test-bench systems have already been developed in this way for Multipole
Acoustic Array Logging Tool (Lu et al., 2010; Lu et al., 2012), Array Induction Logging Tool (Men et al., 2011), Micro-resistivity Scanning Imaging Logging Tool (Yang et al., 2012), and have successfully applied to the test and calibration of tool modules and subs.
The ray technique uses an
acoustic array with 32 to 152 microphones and a technique similar to a lens by measuring the time of flight to each of the microphones.
Within a fixed
acoustic array, this assumption may create bias in resultant space-use estimates by excluding the most mobile individuals as well as individuals who are only detected at receivers placed in a straight line.
Acoustic array systems; theory, implementation, and application.
Each pod type has an
acoustic array and an acoustic wake-up sensor.
Attaching DAS equipment to one end of a standard fiber optic cable, such as those used for telecommunication, creates an
acoustic array of virtual microphones every 10 meters along the fiber.
In the first case however, view formation is quite slow, and there are problems with technological
acoustic array control in the second case.