A method of deep-sea extended tracking using a floating load device

Abstract

The present invention relates to the technical field of design and manufacture of underwater acoustic equipment, and in particular to a method for implementing deep-sea extended tracking using a floating load device, comprising the following steps: S1, constructing a movable underwater detection node; S2, when the target is detected Afterwards, the hydrophone array will be adjusted to a vertical array, aiming at the target through a narrow beam; S3, when the target moves out of the observation area, the hydrophone array will be adjusted to the horizontal direction to increase the horizontal space gain and achieve the target Continuous tracking; the depth and direction of the hydrophone array will be continuously adjusted according to the environmental noise and the distance of the target, so as to realize the continuous extended tracking of the target in the convergence area; Acoustic properties provide a breakthrough in detection performance. It is of great significance to expand the range of underwater target information perception in the future, implement full coverage of sensitive or disputed areas, and establish my country's integrated submarine observation network for underwater detection, communication, guidance, and measurement.

Description

technical field [0001] The invention relates to the technical field of design and manufacture of underwater acoustic equipment, in particular to a method for realizing deep-sea extended tracking by using a floating load device. Background technique [0002] Deep-sea sound channels exist widely in deep seas around the world, and have received great attention because of their very good sound propagation performance. The range from the sea surface to the conjugate depth is called the width of the deep-sea sound channel. According to Snell’s law of refraction, the sound ray always bends to the direction of the minimum value of the sound velocity. When the sound source is located at a certain depth in the deep-sea sound channel, the small sweep The sound rays of the angle of incidence will be limited to propagate in the deep-sea sound channel, and will not collide with the sea surface of the seabed, and the propagation loss is less, so the sound signal can travel a long distance....

AI Technical Summary

Problems solved by technology

[0003] Most sonars in our country adopt the direct wave detection mode, which has strong applicability, but has a short range and is affected by the environment, especially in the deep sea environment, where the sound ray is bent and the sound field is very complex, and sonar signal processing is affected by multi-path propagation and physical environmental impact

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