Simple earth surface bidirectional reflectance measurement support and measurement method

Abstract

The invention relates to a simple earth surface bidirectional reflectance measurement support and a measurement method. The simple earth surface bidirectional reflectance measurement support comprises an angel scale, a probe supporting arm, a probe position monitoring device and a measurement device, wherein the angel scale comprises an arc rod, a bottom cross bar, a rotating fulcrum and an angle fixing clip, angle scale marks are evenly arranged on the edge of the arc rod, the angle fixing clip is fixed on the edge of the arc rod, the rotating fulcrum is located in the center of the arc rod, and the arc rod is fixed above the bottom cross bar; the probe supporting arm comprises a an L-shaped supporting arm and a probe box, a long rod of the L-shaped supporting arm is connected with the angle scale in a rotating mode through the rotating fulcrum, and the probe box is installed on a short rod of the L-shaped supporting arm. The simple earth surface bidirectional reflectance measurement support has the advantages that the angel scale and the probe supporting arm can rotate freely within the range of a 360-degree azimuth angle on the horizontal plane and within the range of a 180-degree observation angel on the vertical plane, angle adjustment can be achieved freely and accurately, manufacturing cost is low, operation accuracy is reliable, and the measurement support is simple and convenient and fast to use.

Description

technical field [0001] The invention relates to the fields of remote sensing and spectroscopy, in particular to a simple surface two-way reflectance measurement bracket and a measurement method. Background technique [0002] The bidirectional reflectance distribution function (Bidirectional Reflectance Distribution Function, BRDF) represents the reflection characteristics of the object surface at any observation angle under different incident conditions. The reflection characteristics determined by it only depend on the characteristics of the object surface itself, so it is an effective description of the target surface. The optimal physical quantity of the light radiation characteristics in the hemispherical space, so the inversion of the spatial distribution structure of the target object can be realized by studying the BRDF. American scholar Nicodemus formally proposed the bidirectional reflectance distribution function in 1970, the formula is: [0003] [0004] In th...

AI Technical Summary

Problems solved by technology

Most of the existing patented products have fixed and limited observation angles, which are difficult to adapt to various observation conditions in the field, and the cost is high. Therefore, it is necessary to design a measurement platform that can meet the accuracy requirements and is easy to manufacture and operate.

Images