NDLI: Simulating Space Lidar Waveforms From Smaller-Footprint Airborne Laser Scanner Data for Vegetation Observation

Content Provider	IEEE Xplore Digital Library
Author	Ristorcelli, T. Hamoir, D. Briottet, X.
Copyright Year	2004
Abstract	A possible step in dimensioning future space-based full-waveform lidar sensors is to predict space signals from commercial airborne laser scanner data. This method has proved able to simulate passive satellite sensors with precise accounting of the scene heterogeneity effects. In this letter, we use the DELiS code (n-Dimensional Estimation of Lidar Signals) to numerically evaluate a simple, efficient aggregation method for combining airborne lidar measurements (submeter footprints) into space lidar signals (decametric footprints). Two main sources of error are studied: the heterogeneity of the scene combined with an insufficient coverage by the airborne scanner, and the multiple scattering of the laser pulse in vegetation. It is found that for three different types of vegetation (corn, orchard, rainforest), and in three usual scanning configurations, the satellite signal can be derived with good precision. However, multiple scattering in the vegetation is shown to induce errors of up to 30% of the total backscattered signal depending on the wavelength.
Sponsorship	IEEE Geoscience and Remote Sensing Society
Starting Page	534
Ending Page	538
Page Count	5
File Size	733172
File Format	PDF
ISSN	1545598X
Volume Number	11
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-01-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Laser radar Vegetation mapping Scattering Atmospheric modeling Sensors Satellites Laser modes vegetation Airborne laser scanner fullwaveform lidar multiple scattering optical radar satellite lidar
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Geotechnical Engineering and Engineering Geology

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3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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