Results 11 to 20 of about 940,927 (266)

Analysis of an antenna system design for a synthetic L- and P-band aperture radar

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
The article presents an analysis of options for designs of the antenna system for a synthetic aperture space radar (SAR), with acceptable performance characteristics in L- and P-bands.
O. V. Goryachkin, I. V. Maslov
doaj   +1 more source

Ionospheric Sounding Based on Spaceborne PolSAR in P-Band

open access: yesAtmosphere, 2022
The signal of spaceborne low-frequency full-polarization synthetic aperture radar (full-pol SAR) contains abundant ionospheric information. Phased Array L-band Synthetic Aperture Radar (PALSAR) working in the L-band has been verified as an emerging ...
Wulong Guo   +8 more
doaj   +1 more source

Сonceptual design of small spacecraft with a high resolution P-VHF band bistatic SAR system

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2017
Spatial resolution is one of the most important characteristics of a radar image. Significant limitations in communication regulations should be taken into account concerning radar facilities in long-wave frequency ranges (P or VHF). These limitations do
O. V. Goryachkin   +2 more
doaj   +1 more source

Multicriteria Accuracy Assessment of Digital Elevation Models (DEMs) Produced by Airborne P-Band Polarimetric SAR Tomography in Tropical Rainforests

open access: yesRemote Sensing, 2022
The penetration capability of P-band radar waves through dense vegetation, along with the ability of tomography to separate the contributions of different layers in a vertical reflectivity profile, make P-band radar tomography a promising tool for ...
Mhamad El Hage   +6 more
doaj   +1 more source

Development of the EcoSAR P-band synthetic aperture radar [PDF]

open access: yes2012 IEEE International Geoscience and Remote Sensing Symposium, 2012
This paper describes objectives and recent progress on the development of the EcoSAR, a new P-band airborne radar instrument being developed at the NASA/ Goddard Space Flight Center (GSFC) for the polarimetric and interferometric measurements of ecosystem structure and biomass. These measurements support science requirements for the study of the carbon
Rafael F. Rincon   +11 more
openaire   +1 more source

Monostatic P-band radar system for advanced small satellites

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2016
Currently, creation of space -based P-band radar systems is a vital problem in the development of Earth remote sensing systems. These systems make it possible to solve the problem of monitoring vegetation on the Earths surface, to carry out soil analysis
O. V. Goryachkin   +2 more
doaj   +1 more source

NiO/Perovskite Heterojunction Contact Engineering for Highly Efficient and Stable Perovskite Solar Cells

open access: yesAdvanced Science, 2020
Recent research shows that the interface state in perovskite solar cells is the main factor which affects the stability and performance of the device, and interface engineering including strain engineering is an effective method to solve this issue.
Bingjuan Zhang   +8 more
doaj   +1 more source

Evaluative conditioning induces changes in sound valence

open access: yesFrontiers in Psychology, 2012
Evaluative Conditioning (EC) has hardly been tested in the auditory domain, but it is a potentially valuable research tool. In Experiment 1 we investigated whether the affective evaluation of short environmental sounds can be changed using affective ...
Anna C. Bolders   +3 more
doaj   +1 more source

Pupil Dilation in the Simon Task as a Marker of Conflict Processing

open access: yesFrontiers in Human Neuroscience, 2013
Cognitive demands in response conflict paradigms trigger negative affect and avoidance behavior. However, not all response conflict studies show increases in physiological indices of emotional arousal, such as pupil diameter.
Henk eVan Steenbergen   +3 more
doaj   +1 more source

Spaceborne P-Band Mimo SAR for Planetary Applications [PDF]

open access: yesIGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
SESAR (Space Exploration Synthetic Aperture Radar) is a next generation P-band beamforming radar instrument concept that will enable a new class of observations suitable to meet Decadal Survey science goals for planetary exploration. The radar operates at full polarimetry and fine (meter scale) resolution, and achieves beam agility through programmable
Rafael F. Rincon   +4 more
openaire   +1 more source

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