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A channel water depth measurement method based on chaotic laser device and its correlation method

A technology of chaotic laser and bathymetry, applied in measurement devices, radio wave measurement systems, re-radiation of electromagnetic waves, etc., to achieve the effect of solving outstanding contradictions

Active Publication Date: 2017-08-25
TAIYUAN UNIV OF TECH
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Problems solved by technology

[0012] The present invention provides a channel water depth measurement method based on a chaotic laser device and its correlation method, which is used to solve the contradiction between the distance resolution and the measurement depth of the existing shallow water area channel measurement method, further improve the shallowest sounding ability, and Detection accuracy

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  • A channel water depth measurement method based on chaotic laser device and its correlation method
  • A channel water depth measurement method based on chaotic laser device and its correlation method
  • A channel water depth measurement method based on chaotic laser device and its correlation method

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Embodiment Construction

[0028] The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0029] Implement a kind of channel water depth measurement method based on chaotic laser device and related method provided above by the present invention, the specific implementation is as attached figure 1 mentioned.

[0030]Based on the chaotic laser device and its correlation method, the method of measuring the shallow water depth of the channel is realized. The structural diagram of the chaotic laser device includes a chaotic solid-state laser 1, a laser collimation system 2, a beam splitter 3, a photodetector I 4, an adjustable Electric delay line 5, telescope 7, photodetector II 8, data acquisition device I9, data acquisition device II 10, signal processing device 11, display device 12, and reflection target channel water bottom 6. Among them, the laser output from the chaotic solid-state laser 1 is collimated by the laser collimati...

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Abstract

Disclosed is a channel depth measuring method based on a chaotic laser device and a correlative method thereof. The depth of a channel in a shoal water area can be measured on the basis of the chaotic laser device. The method includes on a channel water surface carrier, allowing the chaotic laser device to emit probing light and reference light, allowing the probing light to emit to the water bottom of the channel perpendicularly, collecting reflected probing light signals through a telescope, and converting the probing light signals into electrical signals; converting the reference light into electrical signals through a photoelectric detector, after storing two paths of electrical signals, performing correlation calculation, acquiring the time for light signals flying for a round trip in the channel water, and acquiring the channel depth accordingly. By the aid of the method, the conflict between the distance resolution and measuring depth according to the existing laser radar technology for measuring the channel depth is solved, the distance resolution unit can be centimeter, and the advantage of interference resistance is provided.

Description

technical field [0001] The invention relates to a channel water depth measurement method for laser radar sounding, in particular to a channel water depth measurement method based on a chaotic laser device and a correlation method thereof, and belongs to the technical field of underwater detection. Background technique [0002] Waterway is an infrastructure. The construction of waterway not only promotes the development of waterway, but also plays an increasingly prominent economic role in the context of the continuous development of international trade. In order to ensure the safety of channel navigation, the measurement of channel water depth is very important. [0003] Existing channel water depth measurement methods mainly include: single-beam sonar technology, multi-beam sonar technology, multispectral-based remote sensing detection technology, microwave-based remote sensing detection technology, and airborne lidar technology. [0004] The principle of single-beam and m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/88
CPCG01S17/88
Inventor 张建忠王云才李璞张明江王安帮张明涛蔺璐
Owner TAIYUAN UNIV OF TECH
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