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Van Minh Nguyen, Emma Sandidge, Trupti Mahendrakar and Ryan T. White
The accelerating deployment of spacecraft in orbit has generated interest in on-orbit servicing (OOS), inspection of spacecraft, and active debris removal (ADR). Such missions require precise rendezvous and proximity operations in the vicinity of non-coo...
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Murat Mustafin and Hiba Moussa
The technology for determining a point?s coordinates on the earth?s surface using the global navigation satellite system (GNSS) is becoming the norm along with ground-based methods. In this case, determining coordinates does not cause any particular diff...
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Marco Lombardo, Marco Zannoni, Igor Gai, Luis Gomez Casajus, Edoardo Gramigna, Riccardo Lasagni Manghi, Paolo Tortora, Valerio Di Tana, Biagio Cotugno, Simone Simonetti, Silvio Patruno and Simone Pirrotta
In the framework of the Artemis-1 mission, 10 CubeSats will be released, including the 6U CubeSat ArgoMoon, built by the Italian company Argotec and coordinated by the Italian Space Agency. The primary goal of ArgoMoon is to capture images of the Interim...
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Zheng Huang, Wei Zhang, Ti Chen, Hao Wen and Dongping Jin
Ground-based testbeds play a critical role in developing and testing different methods of spacecraft dynamics and control. To find the dynamic behavior in such an air-bearing testbed, a detailed characterization of the testbed must be provided via system...
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Bin Meng and Na Lu
Controlled flight into terrain (CFIT) is considered a typical accident category of ?low-probability-high consequence?. Human factors play an important role in CFIT accidents in such a complex and high-risk system. This study aims to explore the causal re...
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Xinyang Zhao, Qiangqiang Shuai, Guangchen Li, Fangzhou Lu and Bocheng Zhu
The positioning accuracy of a ground-based system in an indoor environment is closely related to the geometric configuration of pseudolites. This paper presents a simple closed-form equation for computing the weighted horizontal dilution of precision (WH...
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Yajie Shi, Chao Ren, Zhiheng Yan and Jianmin Lai
Soil moisture is one of the critical variables in maintaining the global water cycle balance. Moreover, it plays a vital role in climate change, crop growth, and environmental disaster event monitoring, and it is important to monitor soil moisture contin...
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Sajad Tabibi, Renaldo Sauveur, Kelly Guerrier, Gerard Metayer and Olivier Francis
Geodetic Global Navigation Satellite System reflectometry (GNSS-R) uses ground-based signals of opportunity to retrieve sea levels at an intermediate spatial scale. Geodetic GNSS-R is based on the simultaneous reception of Line-of-Sight (LoS) and its coh...
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Jacek Rapinski and Artur Janowski
Modern Global Navigation Satellite Systems (GNSS) allow for positioning with accuracies ranging from tens of meters to single millimeters depending on user requirements and available equipment. A major disadvantage of these systems is their unavailabilit...
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Ryer M. Becker, Robert F. Keefe and Nathaniel M. Anderson
The western United States faces significant forest management challenges after severe bark beetle infestations have led to substantial mortality. Minimizing costs is vital for increasing the feasibility of management operations in affected forests. Multi...
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