Results 11 to 20 of about 5,703,716 (143)

Sensitivity Study of Multiconstellation GNSS-R to Soil Moisture and Surface Roughness Using FY-3E GNOS-II Data [PDF]

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The potential of spaceborne global navigation satellite system reflectometry (GNSS-R) to retrieve a variety of geophysical parameters has already been demonstrated in numerous studies.
Zhongmin Ma, Adriano Camps, Hyuk Park, Shuangcheng Zhang, Xiaojun Li, Jean-Pierre Wigneron   +5 more
doaj   +7 more sources

A Novel Geometry Agnostic Delay and Doppler Tracking Technique for GNSS-Reflectometry: Application to the GNOS-II Payload Onboard the FY-3E

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Global Navigation Satellite System-Reflectometry (GNSS-R) uses GNSS signals as signals of opportunity as a multistatic radar. Most GNSS-R instruments conduct 1 ms coherent integration, followed by 500 or 1000 incoherent averages, leading to level-1 ...
Changyang Wang, Adriano Camps, Xiuqing Hu, Hyuk Park, Kegen Yu, Xiaochun Zhai, Wenqiang Lu, Feixiong Huang, Mi Liao, Peng Zhang, Nanshan Zheng, Kefei Zhang, Zhongmin Ma   +12 more
doaj   +5 more sources

Evaluation and deep learning-based calibration of nearshore sea surface wind speeds from FY-3E GNOS-II and Tianmu-1 missions

Geo-spatial Information Science
This study evaluates and calibrates wind products derived from Global Navigation Satellite System Reflectometry (GNSS-R) using data from the FengYun-3E (FY-3E) global navigation satellite system occultation sounder II (GNOS-II) and Tianmu-1 missions. The
Xinhai Han, Xiaohui Li, Jingsong Yang, Wei Tao, Guoqi Han, Jiuke Wang, Yiqi Wang, Qinghua Bao, Lin Chen, Weiqiang Li   +9 more
doaj   +3 more sources

Level 1 Products Calibration Assessment of FENGYUN-3E GNOS-II GNSS-R

IEEE Transactions on Geoscience and Remote Sensing
The GNOS-II global navigation satellite system reflectometry (GNSS-R) Level 1 products from FENGYUN-3E, which include delay-Doppler map (DDM) and normalized bistatic radar cross section (NBRCS), significantly affect the inversion accuracy of geophysical ...
Huang, Feixiong, Yan, Xiao, Zhu, Jianhua, Nan, Yang, Guo, Bofeng, Du, Hao, Bai, Weihua, Yang, Xiaotong, Zhang, Zhaoyi   +8 more
core   +4 more sources

Topside Total Electron Content Retrieval and Validation Using FY-3 G GNOS-II Observations

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The Fengyun-3 G (FY-3 G) satellite equipped with a Global Navigation Occultation Sounder II (GNOS-II) is capable of tracking BeiDou Navigation Satellite System (BDS) and Global Positioning System (GPS) dual-frequency signals by its zenith precise orbit ...
Peng Hu, Guangyuan Tan, Wenqiang Lu, Weihua Bai, Xiangguang Meng, Guanglin Yang, Weiguo Zong, Yueqiang Sun, Qifei Du, Xianyi Wang, Jian Shang, Xiuqing Hu, Na Xu, Xiangang Zhao, Jinsong Wang, Congliang Liu, Ruhan Wu   +16 more
doaj   +2 more sources

Retrieval of sea ice thickness using FY-3E/GNOS-II data

Satellite Navigation
Sea ice, a significant component in polar regions, plays a crucial role in climate change through its varying conditions. In Global Navigation Satellite System-Reflectometry (GNSS-R) studies, the observed surface reflectivity Γ serves as a tool to ...
Yunjian Xie, Qingyun Yan
doaj   +2 more sources

Advancing GNOS-R Soil Moisture Estimation: A Multi-Angle Retrieval Algorithm for FY-3E

Remote Sensing
Surface soil moisture (SM) is a critical factor in hydrological modeling, agricultural management, and numerical weather forecasting. This paper presents a highly effective soil moisture retrieval algorithm developed for the FY-3E (FengYun-3E) GNOS-R ...
Xuerui Wu, Junming Xia, Weihua Bai, Yueqiang Sun   +3 more
doaj   +2 more sources

Comparative Analysis of SWH Retrieval Between BDS-R and GPS-R Utilizing FY-3E/GNOS-II Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
High-precision sea surface significant wave height (SWH) data are crucial for advancing oceanic shipping and marine resource development. In this study, we conducted a comparative analysis of parameter sensitivity and accuracy in SWH retrieval between ...
Hui Yu, Qifei Du, Junming Xia, Feixiong Huang, Cong Yin, Xiaofeng Meng, Weihua Bai, Yueqiang Sun, Xianyi Wang, Lichang Duan, Yixuan Sun, Guanyi Wang, Yunlong Du   +12 more
doaj   +2 more sources

An Innovative Signal Processing Scheme for Spaceborne Integrated GNSS Remote Sensors

Remote Sensing, 2023
The vigorous development of the global navigation satellite system (GNSS) has led to a boom in GNSS radio occultation (GNSS RO) and GNSS reflectometry (GNSS-R) techniques.
Tongsheng Qiu, Xianyi Wang, Yueqiang Sun, Fu Li, Zhuoyan Wang, Junming Xia, Qifei Du, Weihua Bai, Yuerong Cai, Dongwei Wang, Cheng Liu, Hao Qiao, Feixiong Huang   +12 more
doaj   +1 more source

Multi-year comparison of VITEK MS performance for identification of rarely encountered pathogenic Gram-negative organisms (GNOs) in a large integrated Canadian healthcare region. [PDF]

Microbiol Spectr
This multi-year study (2014–2019) compared identification of rare and unusual Gram-negative organisms (GNOs) by matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) (VITEK MS, bioMérieux, Laval Que.) to 16S rRNA ...
Church DL, Griener T, Gregson D.
europepmc   +2 more sources