Results 61 to 70 of about 200,933 (218)

Processing and Validation of the STAR COSMIC-2 Temperature and Water Vapor Profiles in the Neutral Atmosphere

Remote Sensing, 2022
The global navigation satellite system (GNSS) radio occultation (RO) is becoming an essential component of National Oceanic and Atmospheric Administration (NOAA) observation systems.
Shu-peng Ho, Stanislav Kireev, Xi Shao, Xinjia Zhou, Xin Jing   +4 more
doaj   +1 more source

ADAPT: An Autonomous Forklift for Construction Site Operation

Journal of Field Robotics, EarlyView.
ABSTRACT Efficient material logistics are critical in controlling costs and schedules in the construction industry. However, manual material handling remains prone to inefficiencies, delays, and safety risks. Autonomous forklifts offer a solution to streamline on‐site logistics, reducing reliance on human operators and mitigating labor shortages.
Johannes Huemer, Markus Murschitz, Matthias Schörghuber, Lukas Reisinger, Thomas Kadiofsky, Christoph Weidinger, Mario Niedermeyer, Benedikt Widy, Marcel Zeilinger, Csaba Beleznai, Tobias Glück, Andreas Kugi, Patrik Zips   +12 more
wiley   +1 more source

Validation of Bottom-Up GNSS Radio Occultation Method to Measure D- and E-Region Electron Density [PDF]

, 2023
An in-depth validation of a new bottom-up approach using GNSS Radio Occultation (GNSS-RO) data to generate electron density profiles in the D- and E-region ionosphere.
Shaver, Dylan J.
core   +1 more source

Combined Approach to Locate Medieval Fortified Manor Houses in Central Moravia (the Czech Republic)

Archaeometry, EarlyView.
ABSTRACT A systematic prospection of medieval fortified manor houses (FMHs) in Central Moravia (Czech Republic) was conducted with the aim of mapping their distribution and facilitating both further scholarly research and more effective heritage protection by responsible institutions.
Martin Moník, Jakub Novák, Stanislav Popelka, Ondřej Růžička, Markéta Beitlová, Jan Martínek, Pavel Šlézar, Josef Svoboda, Lukáš Hlubek, Tomáš Lehotský, David Papajík   +10 more
wiley   +1 more source

Preliminary Assessment of BDS Radio Occultation Retrieval Quality and Coverage Using FY-3E GNOS II Measurements

Remote Sensing, 2023
The FengYun-3E Global Navigation Satellite System (GNSS) occultation sounder II (FY-3E GNOS II) was launched on 5 July 2021. For the first time, based on the new GNOS II sensor, this mission realizes radio occultation (RO) and reflectometry observations ...
Congliang Liu, Mi Liao, Yueqiang Sun, Xi Wang, Jiahui Liang, Xiuqing Hu, Peng Zhang, Guanglin Yang, Yan Liu, Jinsong Wang, Weihua Bai, Qifei Du, Xiangguang Meng, Peng Hu, Guangyuan Tan, Xianyi Wang, Junming Xia, Feixiong Huang, Cong Yin, Yuerong Cai, Wei Li, Peixian Li, Gottfried Kirchengast   +22 more
doaj   +1 more source

다중 안테나 기반 데이터 보상을 통한 GNSS RO 전리권 전자밀도 산출 기법 연구

, 2023
학위논문(박사) - 한국과학기술원 : 항공우주공학과, 2023.8,[vii, 113 p. :]Global Navigation Satellite System (GNSS) Radio Occultation (GNSS RO) is a remote sensing technique that observes the Earth's atmosphere, including the ionosphere, based on the degree of refraction and ...
장혜연, Chang, Hyeyeon
core   +1 more source

Using the Commercial GNSS RO Spire Data in the Neutral Atmosphere for Climate and Weather Prediction Studies

Remote Sensing, 2023
Recently, the NOAA has included GNSS (Global Navigation Satellite System) Radio Occultation (RO) data as one of the crucial long-term observables for weather and climate applications.
Shu-peng Ho, Xinjia Zhou, Xi Shao, Yong Chen, Xin Jing, William Miller   +5 more
doaj   +1 more source

Deep Reinforcement Learning Based Autonomous Decision‐Making for Cooperative Uncrewed Aerial Vehicles: A Search and Rescue Real World Application

Journal of Field Robotics, Volume 43, Issue 7, Page 4382-4401, October 2026.
ABSTRACT This paper presents the first end‐to‐end framework that combines guidance, navigation, and centralized task allocation for multiple UAVs performing autonomous search‐and‐rescue (SAR) in GNSS‐denied indoor environments. A twin delayed deep deterministic policy gradient controller is trained with an artificial potential field (APF) reward that ...
Thomas Hickling, Maxwell Hogan, Abdulla Tammam, Nabil Aouf   +3 more
wiley   +1 more source

Joint 1DVar retrievals of tropospheric temperature and water vapor from Global Navigation Satellite System radio occultation (GNSS-RO) and microwave radiometer observations [PDF]

Atmospheric Measurement Techniques
Global Navigation Satellite System radio occultation (GNSS-RO) and microwave radiometry (MWR) are two of the most impactful spaceborne remote sensing techniques for numerical weather prediction (NWP).
K.-N. Wang, C. O. Ao, M. G. Morris, G. A. Hajj, M. J. Kurowski, F. J. Turk, A. W. Moore   +6 more
doaj   +1 more source

Comparative Assessment of Spire and COSMIC-2 Radio Occultation Data Quality

Remote Sensing, 2023
In this study, we investigate the performances of a commercial Global Navigation Satellite System (GNSS) Radio Occultation (RO) mission and a new-generation RO constellation, i.e., Spire and Constellation Observing System for Meteorology, Ionosphere, and
Cong Qiu, Xiaoming Wang, Kai Zhou, Jinglei Zhang, Yufei Chen, Haobo Li, Dingyi Liu, Hong Yuan   +7 more
doaj   +1 more source