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A Response Optimization Processing Method of Marine LiDAR System

A system response and lidar technology, applied in radio wave measurement systems, instruments, measurement devices, etc., can solve the problems of reducing inversion accuracy and changes, and achieve the effect of reducing the impact and reducing the distortion area of ​​the water surface

Active Publication Date: 2021-08-10
ZHEJIANG UNIV
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Problems solved by technology

The system response will cause the original lidar equation to change, reducing the inversion accuracy

Method used

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  • A Response Optimization Processing Method of Marine LiDAR System
  • A Response Optimization Processing Method of Marine LiDAR System
  • A Response Optimization Processing Method of Marine LiDAR System

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Embodiment Construction

[0041] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be noted that the following embodiments are intended to facilitate the understanding of the present invention, but do not limit it in any way.

[0042] Such as figure 1 As shown, an ocean lidar system response optimization processing method is based on the ocean lidar operating in the blue-green light band, and the information near the water surface and in the phytoplankton layer can be accurately obtained by using the ocean lidar system response optimization processing method.

[0043] First, the device selection and calculation method for the response of the marine lidar system is optimized: according to the contribution of the three key components such as lasers, detectors and acquisition cards to the system response, an approximate system response model is proposed to quickly obtain the response of the lidar system pulse width; the m...

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Abstract

The invention discloses a response optimization processing method of a marine laser radar system. Firstly, the device selection and calculation method of the marine laser radar system response are optimized: an approximate system response model is proposed, which can quickly obtain the response pulse width of the laser radar system; A matching selection method among the three devices of laser, detector and acquisition card is proposed, which can give full play to the best performance of different devices; secondly, the error caused by the response of the marine lidar system is suppressed: by selecting suitable for different The system response pulse width of the water body is used to reduce the water surface distortion area caused by water surface reflection and system broadening; the measurement error of the phytoplankton layer caused by the system response is corrected through the correction equation. By optimizing the system response of the marine laser radar, the present invention can facilitate the selection of components when developing the marine laser radar, and reduce the influence of the system response on the inversion of the optical characteristics of the water body.

Description

technical field [0001] The invention belongs to the technical field of laser radar, and in particular relates to a response optimization processing method of a marine laser radar system. Background technique [0002] The ocean occupies 71% of the earth's surface, and the ocean area that humans have explored so far accounts for only 5% of the total area. The marine ecosystem is a complex collection of many biological communities and their environments in the ocean. Among them, phytoplankton form the basis of most marine ecosystems, and their net photosynthetic carbon sequestration is approximately equal to the sum of the carbon sequestration of all terrestrial plants. . The most basic productivity of the food chain drives the exchange of carbon dioxide in the atmosphere-ocean and the fixation of fuel carbon in the deep sea. Therefore, the productivity of phytoplankton plays an important role in the coupled air-sea system of the earth. What's more, global ocean stocks of phy...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S17/88G01S7/48G01S7/4861G01S7/487G01S17/10
CPCG01S7/4802G01S7/4861G01S7/487G01S17/10G01S17/88
Inventor 刘东陈扬周雨迪刘群
Owner ZHEJIANG UNIV
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