Zobrazeno 1 - 10
of 44
pro vyhledávání: '"Niutao Liu"'
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 15196-15205 (2024)
In China's Tianwen-2 mission, a dual-frequency radar will be carried out to detect the asteroid 2016 HO3. The dual-frequency radar can acquire the information of the asteroid's surface and internal structure. There are few studies about the radar det
Externí odkaz:
https://doaj.org/article/807198c355d8459faff4172afea68eca
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 6739-6746 (2024)
In China's Chang'e 7 mission, a miniflyer will be carried for in-situ water ice measurement in permanently shadowed regions (PSRs) around the lunar south pole. The extreme cold environment within PSRs causes serious challenges for the safety of the m
Externí odkaz:
https://doaj.org/article/932389a010484ca69cc181756eac7e57
Autor:
Niutao Liu, Ya-Qiu Jin
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 17, Pp 1331-1337 (2024)
Landing in the permanently shadowed regions (PSRs) on the Moon requires high-resolution topographic information and accurate navigation. Owing to low Sun elevation angles, there is no direct solar illumination in PSR, making it difficult to acquire h
Externí odkaz:
https://doaj.org/article/c5959d09be994b44ae6686e5bd457072
Publikováno v:
Remote Sensing, Vol 16, Iss 11, p 1834 (2024)
Excluding rough areas with surface rocks and craters is critical for the safety of landing missions, such as China’s Chang’e-7 mission, in the permanently shadowed region (PSR) of the lunar south pole. Binned digital elevation model (DEM) data ca
Externí odkaz:
https://doaj.org/article/6839eef0764f41c09b694d370feff5fc
Autor:
Niutao Liu, Ya-Qiu Jin
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 16, Pp 10301-10310 (2023)
Dual-frequency synthetic aperture radar (DFSAR) onboard Chandrayaan-2 and Mini-RF onboard Lunar Reconnaissance Orbiter have acquired fully polarized and compact polarized SAR data of the lunar surface. However, there are few numerical simulations of
Externí odkaz:
https://doaj.org/article/a56df53ff1194316a881c51967d16146
Publikováno v:
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, Vol 15, Pp 7657-7664 (2022)
Data of fully polarimetric synthetic aperture radar onboard Chandrayaan-2 make it feasible to analyze the geometric and physical properties of the lunar soil layer. A specific mission of Chandrayaan-2 is to investigate if there is water–ice in the
Externí odkaz:
https://doaj.org/article/41cf07e8eb46498498f29fd7a2d8b35e
Publikováno v:
The Planetary Science Journal, Vol 4, Iss 6, p 112 (2023)
We describe the measurement of the brightness temperature of the Moon from space during a total lunar eclipse by using a microwave sounder aboard a weather satellite. Previous observations of lunar eclipses were inconsistent and did not cover the fre
Externí odkaz:
https://doaj.org/article/c8667739fd38440887947cdba3f4099b
Autor:
Niutao Liu, Ya-Qiu Jin
Publikováno v:
IEEE Geoscience and Remote Sensing Letters. 20:1-5
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::473caf70b4d159354e2165d186fd996c
https://doi.org/10.1109/lgrs.2023.3250451
https://doi.org/10.1109/lgrs.2023.3250451
Autor:
Ya-Qiu Jin, Niutao Liu
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-11
High circular polarization ratio (CPR) characteristics were found in permanently shaded regions (PSRs) near the lunar poles. High CPR was regarded as a water ice index. The compact-polarimetric (CP) miniature radio frequency (Mini-RF) radar transmits
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1c036961c843f86faa098b87b33cf502
https://doi.org/10.1109/tgrs.2021.3064091
https://doi.org/10.1109/tgrs.2021.3064091
Autor:
Niutao Liu, Ya-Qiu Jin
Publikováno v:
IEEE Transactions on Geoscience and Remote Sensing. 60:1-12
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a26ebefc9eb80ae62ed389f4d4ad6141
https://doi.org/10.1109/tgrs.2021.3094106
https://doi.org/10.1109/tgrs.2021.3094106