Towed body for self-stabilizing sonar platforms

Abstract

The invention provides a towed body for self-stabilizing sonar platforms, which comprises a towed-body shell, a sonar installation platform, a sonar array, a towed-body hanging plate, as well as a cross shaft consisting of two shafts in cross intersection. One shaft in the cross shaft is arranged along the direction of the axis of the towed body, and the other shaft is arranged along the verticaldirection of the axis of the towed body, wherein the top of the towed-body shell is provided with the towed-body hanging plate; the towed-body hanging plate is connected with the shaft in the cross shaft, which is arranged along the direction of the axis of the towed body, while the shaft in the cross shaft, which is arranged along the vertical direction of the axis of the towed body, is connected with the sonar installation platform; a sonar array is arranged on the sonar installation platform; and the sonar array is isolated from the inside of the towed-body shell. The towed body has the advantages of using a cross structure to isolate the sonar installation platform provided with sonar from the towed-body shell, ensuring that external disturbance cannot be conducted to the sonar through the towed-body shell and improving the accuracy of sonar detection.

Description

technical field [0001] The invention relates to the field of marine detection, in particular to a drag body used on a self-stabilizing sonar platform. Background technique [0002] Sonar is the most important equipment in ocean detection. In order to improve the performance of sonar detection, sonar needs to be installed on the underwater platform. There are two types of sonar platforms: fixed and mobile, and mobile sonar platforms are divided into towed (TOV) and powered underwater navigation (AUV, ROV). A variety of sonar equipment can be installed on the mobile sonar platform. Taking the towed platform as an example, the equipment that can be carried on the towed platform includes: side-scan sonar, multi-beam side-scan sonar, synthetic aperture imaging sonar, depth sounding Image sonar such as synthetic aperture imaging sonar, bathymetric side scan sonar, shallow stratum profile sonar, etc. Towed sound sources adapted to other sonars (such as active towed line array son...

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Problems solved by technology

[0004] from figure 1 The structure of the sonar platform shown is easy to see that when this type of sonar platform travels in water, disturbances such as external ocean currents and eddies are easily transmitted to the sonar array 3 through the drag body shell 1, thereby making the sonar The various sonar devices in Nanoarray 3 are affected by external disturbances

As mentioned in the previous article, sonar has high requirements for the stability of sonar platforms. Therefore, in shallow sea areas with large external disturbances, the towing body design of existing sonar platforms cannot meet the technical requirements of sonar for stability. requirements, which ultimately affects the accuracy of sonar detection

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