Small-angle goniometry for backscattering measurements in the broadband spectrum

被引：22

作者：

Kaasalainen, S

Peltoniemi, J

Näränen, J

Suomalainen, J

Kaasalainen, M

Stenman, F

机构：

[1] Finnish Geodet Inst, FIN-02431 Masala, Finland

[2] Univ Helsinki, Dept Math & Stat, FIN-00014 Helsinki, Finland

[3] Univ Helsinki, Dept Phys Sci, FIN-00014 Helsinki, Finland

来源：

APPLIED OPTICS | 2005年 / 44卷 / 08期

关键词：

D O I：

10.1364/AO.44.001485

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present experiments on spectral bidirectional reflectance distribution function (BRDF) effects at backscatter and discuss the feasibility of new methods for laboratory and field simulations of remote sensing of land surfaces. The extreme sharpness of the intensity peak allows both directional and comparative experimental spectral studies of hot spots. We demonstrate wavelength-dependent features in the hot-spot reflectance signatures that facilitate extension of spectral and directional BRDF measurements of natural targets (such as forest understories and ice surfaces) into retroreflection to exploit their hot-spot characteristics in the interpretation of spaceborne and airborne data. (c) 2005 Optical Society of America.

引用

收藏

页码：1485 / 1490

页数：6

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