An intelligent active control method for ship acoustic characteristics

An acoustic feature and active control technology, applied in electrical program control, program control in sequence/logic controllers, fluids using vibration, etc., can solve the problems that cannot meet the needs of ship acoustic concealment and false camouflage

Active Publication Date: 2021-02-19
HARBIN ENG UNIV
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, under the background of continuous development of underwater acoustic detection, the existing control methods cannot meet the camouflage requirements of ship acoustic concealment, and it is difficult to effectively cope with the increasingly severe underwater detection requirements.

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  • An intelligent active control method for ship acoustic characteristics
  • An intelligent active control method for ship acoustic characteristics

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Embodiment Construction

[0014] The present invention is described in more detail below in conjunction with accompanying drawing example:

[0015] combine Figure 1-2 , the intelligent active control system model of ship acoustic characteristics such as figure 1 As shown, it includes a perception sensor 1 , an acoustic analysis and feature extraction module 2 , a control module 3 , a driving module 4 and a transducer 5 . A plurality of sensing sensors 1 and transducers 5 are dispersedly arranged on the surface of the hull structure, and the quantity and distribution of the two are relatively independent. The acoustic analysis and feature extraction module 2, the control module 3, and the drive module 4 adopt an integrated and modular design, and are used in multiple groups in parallel.

[0016] a) Perceptual sensor 1 picks up acoustic and environmental parameter signals such as ship vibration noise, pressure, temperature, etc., and transmits said signal to acoustic analysis and feature extraction mo...

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Abstract

The purpose of the present invention is to provide an intelligent active control method for ship acoustic features. Perceptual sensors detect noise signals, pressure, temperature and other acoustic and environmental information near the hull below the water surface, and the required radiation near the hull is extracted by the acoustic analysis and feature extraction module. For noise signals and acoustic situation information, the control module uses an adaptive control algorithm to generate a signal of a specific frequency and amplitude according to the acoustic characteristics and acoustic situation information, and finally realizes the control of the acoustic characteristics through the drive module and the transducer. The present invention can not only change the characteristics of the voiceprint of the ship, realize the acoustic false camouflage to deceive and confuse the other party, but also can actively cancel the noise near the hull below the water surface when necessary, reduce its own acoustic characteristic signal, "hide" itself, and realize intelligence Acoustic stealth, in order to effectively improve the ship's intelligent active control and acoustic stealth performance.

Description

technical field [0001] The invention relates to a ship control method, in particular to a ship acoustic active control method. Background technique [0002] With the development of underwater sonar detection technology, the detection capability of sonar continues to develop, and the detection frequency band of corresponding sonar is also extended to low frequencies. Compared with traditional control technology, active control technology is used to suppress and reduce the acoustic characteristics of ships and improve the acoustic stealth performance of ships because it can effectively control low-frequency noise. However, under the background of continuous development of underwater acoustic detection, the existing control methods cannot meet the camouflage requirements of ship acoustic concealment and false detection, and it is difficult to effectively cope with the increasingly severe underwater detection requirements. Contents of the invention [0003] The purpose of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B06B1/02G05B19/04
CPCB06B1/02G05B19/04
Inventor 靳国永叶天贵刘瑞杰庞福振李善军王雪仁杨铁军缪旭弘
Owner HARBIN ENG UNIV
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