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HyperUAS - imaging spectroscopy from a multirotor unmanned aircraft system

journal contribution
posted on 2023-05-18, 02:01 authored by Arko LucieerArko Lucieer, Zbynek MalenovskyZbynek Malenovsky, Veness, T, Luke WallaceLuke Wallace
One of the key advantages of a low-flying unmanned aircraft system (UAS) is its ability to acquire digital images at an ultrahigh spatial resolution of a few centimeters. Remote sensing of quantitative biochemical and biophysical characteristics of small-sized spatially fragmented vegetation canopies requires, however, not only high spatial, but also high spectral (i.e., hyperspectral) resolution. In this paper, we describe the design, development, airborne operations, calibration, processing, and interpretation of image data collected with a new hyperspectral unmanned aircraft system (HyperUAS). HyperUAS is a remotely controlled multirotor prototype carrying onboard a lightweight pushbroom spectroradiometer coupled with a dual frequency GPS and an inertial movement unit. The prototype was built to remotely acquire imaging spectroscopy data of 324 spectral bands (162 bands in a spectrally binned mode) with bandwidths between 4 and 5 nm at an ultrahigh spatial resolution of 2–5 cm. Three field airborne experiments, conducted over agricultural crops and over natural ecosystems of Antarctic mosses, proved operability of the system in standard field conditions, but also in a remote and harsh, low-temperature environment of East Antarctica. Experimental results demonstrate that HyperUAS is capable of delivering georeferenced maps of quantitative biochemical and biophysical variables of vegetation and of actual vegetation health state at an unprecedented spatial resolution of 5 cm.

Funding

Australian Research Council

History

Publication title

Journal of Field Robotics

Volume

31

Issue

4

Pagination

571-590

ISSN

1556-4959

Department/School

School of Geography, Planning and Spatial Sciences

Publisher

John Wiley & Sons Inc

Place of publication

United States of America

Rights statement

Copyright 2014 Wiley Periodicals

Repository Status

  • Restricted

Socio-economic Objectives

Assessment and management of coastal and estuarine ecosystems

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