Automatic measurement device and method for water body apparent spectrum bi-directional property

An automatic measurement and two-way technology, applied in the field of remote sensing, can solve problems such as unsatisfactory, low degree of automation, and influence, and achieve the effect of ensuring simultaneity and improving matching

Active Publication Date: 2015-08-26
WUHAN UNIV
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Problems solved by technology

At present, most of the equipment that can measure the dichroism of the light field of water in the world is for measuring the underwater light field, while the existing equipment that can measure the dichroism of the light field of the water surface is not highly automated and is greatly affected by human factors. Unable to meet the requirements of long-term serial sample data collection for actual on-site operations

Method used

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  • Automatic measurement device and method for water body apparent spectrum bi-directional property
  • Automatic measurement device and method for water body apparent spectrum bi-directional property
  • Automatic measurement device and method for water body apparent spectrum bi-directional property

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Embodiment Construction

[0038] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only for illustration and explanation of the present invention, and are not intended to limit this invention.

[0039] This example is an experiment carried out in Poyang Lake. The experiment only measured the water spectrum at two angles, which are (θ: 40, -45), (θ: 40, 135), 135-degree symmetry used to be -45 degrees.

[0040] Such as figure 1 , figure 2 , image 3 , Figure 4 with Figure 5 As shown, a kind of water body apparent spectrum ditropic automatic measuring device provided by the present invention comprises a total control system 1, an automatic adjustment system for observation geometry 2, a global positioning system 3, and a multi-angle opt...

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Abstract

The invention discloses an automatic measurement device and method for water body apparent spectrum bi-directional property. The device comprises a master control system, an automatic observation geometry adjustment system, a global positioning system and a multi-angle optical measuring system, wherein the master control system is connected with the automatic observation geometry adjustment system, the global positioning system and the multi-angle optical measuring system through cables; the multi-angle optical measuring system is mounted on the automatic observation geometry adjustment system. The method comprises the steps of installation deployment, position information inputting, real-time time information inputting, sun azimuth calculation, automatic observation geometry adjustment and multi-angle spectrum acquisition. According to the invention, the automatic measurement of water body apparent spectrums at a plurality of observation azimuths can be implemented easily, the observation angle is strictly adjusted, and spectrum data is subjected to parallel acquisition, so that the simultaneity and synchronicity of spectrum data at the observation azimuths are guaranteed, the matching of the spectrum data acquired at different observation angles is greatly improved, and high-quality on-site observation data is provided for research of water body apparent spectrum bi-directional property.

Description

technical field [0001] The invention belongs to the technical field of remote sensing, and in particular relates to an automatic measurement device and method for apparent spectral dichroism of a water body. Background technique [0002] The water body light field is not isotropic. In the research of water color remote sensing inversion algorithm, water surface substitution calibration experiment of water color remote sensor and atmospheric correction algorithm of water color remote sensing data, the bidirectionality of water body light field cannot be ignored. The study of its distribution law has very important scientific and practical significance. The multi-angle measurement data of the apparent spectrum of the water body is an important basis for the analysis of the bidirectionality of the light field of the water body. The research on the bidirectionality of the light field of the oceanic water body is relatively mature, but there are still many problems in the researc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/25G01N21/19G01N21/01
Inventor 田礼乔陈晓玲黄锐
Owner WUHAN UNIV
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