WGA-750

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The WGA-750 application field refers to the use of different acoustic systems to detect different underwater acoustic sources such as fish, submarines, and marine mammals, and to detect acoustically active objects in the deep sea. This application field is based on the principle of using acoustic navigation systems, which are systems that make use of sound waves to measure distances and object velocity, as well as to determine direction of various underwater objects.

The working principle of WGA-750 system is to determine the direction of the object by continuously tracking the sound originated from the object. The system uses an acoustic emitting source to emit short bursts of sound that propagate away from the source and reach the target object. The acoustic waves are reflected back from the object and registered by acoustic sensors including hydrophones. These sensors are deployed on a remote underwater platform used to track the target object. The received acoustic pulses are processed for bearing measurement, and relevant range and velocity data are calculated by the analytical programs.

WGA-750 system also allows for the calculation of the target\'s direction by taking into account the Doppler effect. The measurement of the target\'s bearing angles is completed by calculating the Doppler shifts between the signals transmitted from the source and those received by the sensors. The signal emitted from the source is given a higher Doppler shift than the signal received from the target object. The difference in the transmitted and received Doppler shift is calculated, and the bearing angle of the target is determined accurately.

Furthermore, the WGA-750 system is capable of providing detailed information on the velocity, position, and attitude of the target object, even in complex environments. This is realized by a combination of angle measurements from three independent hydrophone receivers, the latest guidance algorithms and the signal processing techniques. This system has been used to detect a broad variety of objects, including fish swimming in the open ocean, submarines navigating in deep ocean waters, and marine mammals inhabiting coastal waters.

The WGA-750 system is designed to provide a reliable and precise acoustic navigation system for situations where traditional navigational means are not possible. It is also used to survey and track underwater targets of interest, to locate the sources of acoustic events, and to detect objects with acoustic signatures of specific characteristics. Moreover, this system has been used to facilitate the understanding of the life and behavior of various undersea animals.

In summary, the WGA-750 application field refers to the use of acoustic systems to detect underwater acoustic sources such as fish, submarines, and marine mammals. The working principle of this system is to track the sound originated from the target object and calculate the bearing angles by measuring the Doppler shifts between the signals transmitted from the source and those received by the sensors. Furthermore, the WGA-750 system is capable of providing detailed information on the velocity, position, and attitude of the target object even in complex environments. It is extensively used to survey and track underwater targets of interest, to locate the sources of acoustic events, and to detect objects with acoustic signatures of specific characteristics.

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