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Multi-standard underwater two-way ultrasound guidance system and method

A guidance system and multi-standard technology, applied in the field of target recognition, can solve the problems of recognition accuracy and speed reduction, and achieve the effects of reducing restrictions, improving accuracy and reliability, and high sensitivity

Inactive Publication Date: 2014-05-21
李慧 +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an accurate, reliable, and efficient identification method for the defects in the prior art that the ultrasonic signal is affected by the distance when detecting and identifying objects underwater, resulting in a decrease in the accuracy and speed of identification. Multi-system underwater two-way ultrasonic guidance system and method with high height and long application distance

Method used

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  • Multi-standard underwater two-way ultrasound guidance system and method

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Embodiment 2

[0054] The ultrasonic guidance system of Embodiment 2 can quickly make judgments on the received echoes (ie, response frequency) during the search and detection process, and issue accurate guidance signals to navigate the submersible or the self-guided self-propelled device to ensure that it reaches the target object in time Rescue the location, or take measures to prevent foreign aggression. It should be noted that although the ultrasonic guidance system of Embodiment 1 does not include the target tracking unit, its signal processing unit can communicate with related navigation and / or tracking devices outside the system to achieve a tracking function similar to the target tracking unit.

[0055] In another embodiment of the invention, the ultrasonic guidance system may also include a display unit or be in communication with a remote display unit. In this case, when it is determined that the detected underwater object matches the specific target to be detected & identified, th...

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Abstract

The invention belongs to the technical field of object identification and discloses a multi-standard underwater two-way ultrasound guidance system for detecting and identifying an underwater object. The multi-standard underwater two-way ultrasound guidance system comprises an ultrasonic generator for producing underwater detecting signals and further comprises a characteristic frequency determining unit, a storage unit, a response frequency receiving unit and a signal processing unit, and the characteristic frequency determining unit, the storage unit, the response frequency receiving unit and the signal processing unit are respectively used for determining a characteristic frequency of a specific target, storing the characteristic frequency, receiving the response frequency of a detected underwater object to underwater detecting signals and determining whether the detected underwater object is the specific target according to comparison results of the characteristic frequency and the response frequency. In the multi-standard underwater two-way ultrasound guidance system, the characteristic frequency can reflect proprietary information of a certain target, and therefore, the accuracy and reliability of utilizing ultrasound to perform detection and recognition under the water can be improved through consistency comparison of the response frequency and the characteristic frequency; the sensitivity of frequency comparison is higher and limitation on identification accuracy caused by distance can be reduced.

Description

technical field [0001] The invention belongs to the technical field of target identification and relates to an underwater ultrasonic guidance system. More specifically, the present invention relates to a multi-standard underwater two-way ultrasonic guidance system and method. Background technique [0002] With the increasing frequency of human ocean activities, the important role of underwater target recognition in the national economy and military has attracted more and more attention. Due to its good propagation characteristics in water, ultrasonic waves have become an important technical means for underwater target recognition. It has a positive physical scanning electronic display effect on the response audio frequency and response imaging video frequency of underwater objects. At present, ultrasonic technology has been widely used in the salvage of civilian sunken ships, fish tracking and fishing, detection and mining of seabed minerals, surveying and mapping of sea la...

Claims

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Application Information

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IPC IPC(8): G01S15/66
CPCG01S7/539G01S15/66
Inventor 李慧韩柳生
Owner 李慧
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