Backscattering properties of topographic targets in the visible, shortwave infrared, and mid-infrared spectral ranges for hard-target lidars

Document Type

Article

Publication Date

8-20-2018

Abstract

Hard-target lidars rely on the reflectivity and backscattering properties of topographic targets, which are rather difficult to evaluate, resulting in uncertainties when assessing the performance of the instrument. In this work, backscattering properties and hemispherical reflectance of topographic targets are measured in the visible, near-infrared, and mid-infrared spectral ranges. A laboratory setup mimicking a hard-target lidar is used to measure the backscattered signals at various angles of incidence, which are then fitted using a bidirectional reflectance distribution function Phong model. We show that these results are useful for optimizing active stand-off detection and hard-target lidars and for increasing their overall efficiency.

Identifier

85051998594 (Scopus)

Publication Title

Applied Optics

External Full Text Location

https://doi.org/10.1364/AO.57.006990

e-ISSN

21553165

ISSN

1559128X

PubMed ID

30129588

First Page

6990

Last Page

6997

Issue

24

Volume

57

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