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A hyperspectral lidar target sample test device and method

A laser radar and sample test technology, applied in the field of remote sensing, can solve problems such as being unsuitable for pulse laser radar, and achieve the effect of adjustment

Inactive Publication Date: 2018-08-28
INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Patents 201110178750.4 and 200910243719.7 are devices for measuring multi-angle information of ground objects with sunlight light source, which are not suitable for pulse laser radar applications

Method used

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  • A hyperspectral lidar target sample test device and method
  • A hyperspectral lidar target sample test device and method
  • A hyperspectral lidar target sample test device and method

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Embodiment Construction

[0034] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0035] combine Figure 1 to Figure 4As shown, the embodiment of the present invention provides a hyperspectral lidar target sample test device, including: a pulsed supercontinuum laser light source 101; a laser source two-dimensional corner device; an electrically adjustable collimator 103 with an adjustable divergence angle; A microstructure crystal fiber 102 connected to a pulsed supercontinuum laser light source and an electrically adjustable collimator; an object-carrying turntable 106; a detector corner device; an echo collection device 131 fixed on the upper end of the detector bracket; a detection device 141; The control center 151 of the source two-dimensional cor...

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Abstract

The invention discloses a hyperspectral laser radar target sample test apparatus and method. The hyperspectral laser radar target sample test apparatus includes a pulse type super-continuum laser source, a laser source two-dimensional rotating device, a divergence angle-adjustable electrically-controlled collimator, a micro structure crystal optical fiber, a loading turntable, a detector rotating device, an echo collecting device fixed at the upper end of a detector support, a detection device, and a control center connected with the laser source two-dimensional rotating device, the electrically-controlled collimator, the detector rotating device, the loading turntable and the detection device. With the hyperspectral laser radar target sample test apparatus and method of the invention adopted, the multi-angle information of the spectrum of the echoes of a target sample in a hemisphere space can be automatically and quickly measured under a pulse type wide spectrum laser detection condition. The hyperspectral laser radar target sample test apparatus and method can be applied to scattering and radiation characteristic research of super-continuum pulse laser of target samples.

Description

technical field [0001] The invention relates to the field of remote sensing, in particular to a hyperspectral lidar target sample testing device and method. Background technique [0002] There are three forms of reflection of electromagnetic waves on the surface of an object: specular reflection, diffuse reflection and directional reflection. Specular reflection means that the reflection angle is equal to the incident angle, and the reflected energy is concentrated in one direction; diffuse reflection means that the entire surface reflects incident light uniformly in all directions; directional reflection is between diffuse reflection and specular reflection, and there is reflection in all directions, but The reflection intensity is not uniform in all directions. [0003] In fact most natural surfaces are rough to the wavelength of the radiation. When the surface of the target is rough enough that its reflected radiance to the solar shortwave radiation is constant in the 2...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/497
CPCG01S7/497
Inventor 牛铮孙刚高帅李旺王力黄文江占玉林
Owner INST OF REMOTE SENSING & DIGITAL EARTH CHINESE ACADEMY OF SCI
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