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Nikoleta Vitsi, Argyris N. Stassinakis, Nikolaos A. Androutsos, George D. Roumelas, George K. Varotsos, Konstantinos Aidinis and Hector E. Nistazakis
Visible light positioning systems (VLP) have attracted significant commercial and research interest because of the many advantages they possess over other applications such as radio frequency (RF) positioning systems. In this work, an experimental config...
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Zhiyuan Yu, Xiaoxia Wu and Fuguo Wang
Active optics is a key technology in ground-based large-aperture telescopes. The active correction of the surface shape of the primary mirror is used to reduce the surface shape error and improve the imaging quality. At present, the structure of the acti...
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Meiying Liu, Hu Wang, Hongwei Yi, Yaoke Xue, Desheng Wen, Feng Wang, Yang Shen and Yue Pan
This paper focuses on the opportunity to use multiple star trackers to help space situational awareness and space surveillance. Catalogs of space debris around Earth are usually based on ground-based measurements, which rely on data provided by ground-ba...
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Jupeng Ding, Wenwen Liu, Chih-Lin I, Hui Zhang and Hongye Mei
Optical wireless communications have attracted widespread attention in the traditional power industry because of the advantages of large spectrum resources, strong confidentiality, and freedom from traditional electromagnetic interference. This paper mai...
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Jinlin Gu, Mingchao Zhu, Lihua Cao, Ang Li, Wenrui Wang and Zhenbang Xu
An uncalibrated visual servo strategy for the on-orbit automatic assembly of an ultra-high-caliber optical system. It is mainly employed to realize the static positioning and dynamic tracking of the desired image features in a harsh space environment whe...
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Dimitrios Trigkakis, George Petrakis, Achilleas Tripolitsiotis and Panagiotis Partsinevelos
GNSS positioning accuracy can be degraded in areas where the surrounding object geometry and morphology interacts with the GNSS signals. Specifically, urban environments pose challenges to precise GNSS positioning because of signal interference or interr...
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Nunzio Cennamo, Francesco Arcadio, Aldo Minardo, Domenico Montemurro and Luigi Zeni
In this work, we have compared several configurations of surface plasmon resonance (SPR) sensors based on D-shaped tapered plastic optical fibers (TPOFs). Particularly, the TPOFs used to obtain the SPR sensors are made by a lab-built system based on two ...
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Olaoluwa Rotimi Popoola, Sinan Sinanovic, Wasiu O. Popoola and Roberto Ramirez-Iniguez
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Hongtang Gao, Zhongyu Wang, Yinbao Cheng, Yaru Li, Shuanghua Sun and Zhendong Shang
End-plate surface distance is important for length value dissemination in the field of metrology. For the measurement of distance of two surfaces, the positioning method is the key for realizing high precision. A practical method with nanometer positioni...
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Valerio Tramutoli, Francesco Marchese, Alfredo Falconieri, Carolina Filizzola, Nicola Genzano, Katsumi Hattori, Mariano Lisi, Jann-Yenq Liu, Dimitar Ouzounov, Michel Parrot, Nicola Pergola and Sergey Pulinets
In this work, we assessed the possible relation of ionospheric perturbations observed by Detection of Electro-Magnetic Emissions Transmitted from Earthquake Regions (DEMETER), Global Positioning System total electron content (GPS TEC), National Oceanic a...
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