Results 171 to 180 of about 12,090 (214)

Spaceborne Lidar Mission, Past and Future

Conference on Lasers and Electro-Optics Europe, 1996
Laser rangefinders and atmospheric lidars use the same techniques. A short laser puls is transmitted and the reflected or scattered light is detected. Range resolved information of the targets or scatters is the output. To illustrate the use the mission, an example for a ground based system is given: A mission scenario on the highways is a good example.
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Spaceborne scanning lidar system (SSLS) upgrade path

SPIE Proceedings, 2006
The Spaceborne Scanning Lidar System (SSLS) system is a space-qualified scanning lidar system developed by MDA and Optech. It has been operating on orbit since April 2005 as part of the XSS-11 one-year demonstration of space technologies associated with spacecraft autonomous rendezvous and proximity operations.
M. Nimelman, J. Tripp, A. Allen, D. M. Hiemstra, S. A. McDonald   +4 more
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Modeling spaceborne lidar returns from vegetation canopies

SPIE Proceedings, 2007
Structural and biophysical parameters of vegetation canopies, such as tree heights, biomass, vertical and horizontal heterogeneity are important factors affecting flows of energy, water, carbon and trace gases through terrestrial systems. Knowing such parameters is required to model processes associated with photosynthesis, energy transfer, and ...
B. Hu, I. Tcherniavski, A. Dudelzak, A. Koujelev   +3 more
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A spaceborne adaptive lidar for earth imaging

2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2017
Space-based laser remote sensing has become a key contributor to understanding our Earth and other planetary bodies. The steady innovation in laser-related technologies provides us new opportunities and challenges in creating laser-related instruments and sensors that will expand our knowledge and extend our reach. This paper illustrates an approach to
Carl Weimer, Mike Lieber, Reuben Rohrschneider, Lyle Ruppert   +3 more
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Quantifying Surface Reflectivity for Spaceborne Lidar Missions

IGARSS 2008 - 2008 IEEE International Geoscience and Remote Sensing Symposium, 2008
Spaceborne lidar missions are being studied to estimate atmospheric concentrations of CO2, water vapour and O3, as well as for measuring surface biophysical properties. Lidar instruments typically observe the highest possible surface reflectance due to observing in the retroreflection peak (the so-called 'hotspot'), where shadowing on the surface is ...
M. I. Disney, P. Lewis, M. Bouvet
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Overview of Japan's spaceborne vegetation lidar mission

SPIE Proceedings, 2013
Vegetation LIDAR, which measures an accurate canopy height, has been studied by JAXA. Canopy height is a very important parameter to estimate forest biomass, and global measurement of accurate canopy height leads to better understanding of the global carbon cycle.
Jumpei Murooka, Takashi Kobayashi, Tadashi Imai, Keiko Suzuki, Daisuke Sakaizawa, Shiro Yamakawa, Ryota Sato, Haruo Sawada, Kazuhiro Asai   +8 more
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Modern concept of a spaceborne lidar

SPIE Proceedings, 1999
The experience on the first backscatter lidar operating in space (LITE, USA, 1994; BALKAN, Russia, 1995 - 1997; ALISSA, Russia-France, 1996 - present time) is analyzed to provide a basis for guiding the development of new orbital lidars. Considering the status of development of laser sensing methods harnessing elastic scattering and needs for obtaining
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Obtaining a ground-based lidar geometric form factor using coincident spaceborne lidar measurements

Applied Optics, 2009
We present a method to determine the geometric form factor of a ground-based lidar using simultaneous lidar measurements made from the ground and from space. The theoretical basis is described. The feasibility of the method is demonstrated by applying it to the measurement data acquired by the Cloud Aerosol Lidar Infrared Pathfinder Satellite ...
Jia, Su, M Patrick, McCormick, Zhaoyan, Liu, Kevin H, Leavor, Robert B, Lee, Jasper, Lewis, Michael T, Hill   +6 more
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Unstable Resonator Considerations For Spaceborne Coherent Lidar Applications

SPIE Proceedings, 1989
We summarize the results of an investigation into the relative merits of diffractive and radially-variable unstable resonator couplers for use in heterodyne-detection lidar systems, emphasizing overall lidar system efficiency.
David M. Tratt, Robert T. Menzies
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Design Considerations for Spaceborne Lidars

1987
Spaceborne lidars promise the capability to determine important meteorological parameters, with a height resolution and accuracy required for improved weather forecasting and understanding of the climate. Lidars can advantageously complement passive sounders due to their ability to perform depth resolved measurements with excellent vertical resolution,
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