Results 181 to 190 of about 21,027 (215)
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Snowfall Detection by Spaceborne Radars
2020Algorithms to determine the thermodynamic phase state of precipitation observed from spaceborne radar are provided in this section. After briefly describing the classical methods to determine the thermodynamic phase of precipitation at the surface, some advanced methods to separate solid precipitation regions from liquid precipitation regions in the ...
Atsushi Hamada+2 more
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Spaceborne radar design equations and concepts
1997 IEEE Aerospace Conference, 1997Spaceborne radar systems (SBR) can be designed for several modes of operation including airborne moving target indication (AMTI), ground moving target indication (GMTI), and synthetic aperture radar (SAR) mapping. Each application imposes a different design constraint, in addition to the nominal power-aperture requirements.
S.A. Hovanessian, L.B. Jocic, J.M. Lopez
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Simulation of a spaceborne radar altimeter
Proceedings IEEE Southeastcon '98 'Engineering for a New Era', 2002This paper describes a computer simulation developed for spaceborne radar altimeter applications. The simulation uses a behavioral model for an orbiting altimeter. The model developed is based on the GEOSAT Follow-On Radar Altimeter, but is general in nature and can be used as an analysis or design tool for altimeter design development, or testing.
J.R. Dobrzanski, G.W. Gleason
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Perspectives on Worldwide Spaceborne Radar Programs
2007 IEEE Radar Conference, 2007Radar technology and techniques were originally developed for land-based, maritime, and airborne applications. Spaceborne radar systems development began in the 1960s in the USSR for military purposes, and in the 1970s in the United States for civilian scientific purposes. NASA launched the SeaSAT satellite in 1978, carrying a synthetic aperture radar,
G.M. Buccolo, Paul A. Rosen
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Second-generation spaceborne precipitation radar [PDF]
The Global Precipitation Mission is currently being planned as a follow-on to the Tropical Rainfall Measuring Mission. One of the key components of the GPM science instrumentation is an advanced, dual-frequency rain mapping radar. In this paper, the authors present a potential system concept for this second-generation spaceborne precipitation radar ...
J. Huang+9 more
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Applied Optics, 1971
Laser radar systems are being developed to acquire and track targets in applications such as the rendezvous and docking of two spacecraft. To search effectively for and locate a target using a narrow laser beam, a scanning system is needed. This paper describes a scan technique whereby a narrow laser beam is synchronously scanned with an equally narrow
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Laser radar systems are being developed to acquire and track targets in applications such as the rendezvous and docking of two spacecraft. To search effectively for and locate a target using a narrow laser beam, a scanning system is needed. This paper describes a scan technique whereby a narrow laser beam is synchronously scanned with an equally narrow
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A spaceborne ground penetrating radar: MIMOSA
IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003The MIMOSA radar is a spaceborne unfocused nadir looking synthetic aperture P-Band radar designed to penetrate the Earth superficial layers and proposed in the frame of the Earth Explorer Opportunity Missions (ESA). This paper reviews all the mission aspects. The scientific objectives are presented: 3D mapping of Antarctic ice sheet, biomass monitoring,
P. Bauer+4 more
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Spaceborne Bistatic Synthetic Aperture Radar
2008In order to maintain adequate swath overlap along the orbit, BSAR missions require careful selection of orbits and pointing which must also take into account system-level issues, for instance: impacts on transmitting/receiving radar mission, requirements on bistatic payload/bus, lifetime.
MOCCIA, ANTONIO, D'Errico M.
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The spaceborne imaging radar experiments
25th AIAA Aerospace Sciences Meeting, 1987The Spaceborne Imaging Radar (SIR), a multifrequency multipolarization synthetic aperture radar (SAR) with variable image geometry, is being developed, as part of the Space Station's Earth Observing System (Eos), for the launching of the SIR-C and SIR-D planned for the early 1990's.
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The spaceborne subsurface sounding radar technology
IET International Radar Conference 2015, 2015Nowadays, The USA, Europe and Japan have established a series of plans of deep space exploration [1]. Our country also has lunar exploration program and Mars exploration planning. With growing fierce competition for outer space, strategic resource exploitation is getting more attention. The space-borne subsurface sounding radar is a natural payload for
Danru Yu+3 more
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