Highly non‐linear and wide‐band mmWave active array OTA linearisation using neural network by Feridoon Jalili, Yufeng Zhang, Markku Hintsala, Ole Kiel Jensen, Qingyue Chen, Ming Shen, Gert Frølund Pedersen

“…Using the proposed NN‐based linearisation technique, an improvement of 5‐dB ACLR and 7% points in EVM are achieved, which demonstrates the promising potential of this technique for emerging broadband communication systems such as 5G/6G and low Earth orbit (LEO) satellite networks.…”
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A Concept of 2U Spaceborne Multichannel Heterodyne Spectroradiometer for Greenhouse Gases Remote Sensing by Sergei Zenevich, Iskander Gazizov, Dmitry Churbanov, Yegor Plyashkov, Maxim Spiridonov, Ravil Talipov, Alexander Rodin

“…We considered the low Earth orbit for the MLHS deployment and analyzed the expected surface coverage and spatial resolution during one year of operations. …”
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Magnitude Standardization Procedure for OWL-Net Optical Observations of LEO Satellites by Dong-Goo Roh, Jin Choi, Jung Hyun Jo, Hong-Suh Yim, Sun-Youp Park, Maru Park, Young-Jun Choi, Young-Ho Bae, Young-Sik Park, Hyun-Jung Jang, Sungki Cho, Ji-Hye Kim, Jang-Hyun Park

“…We have defined standard magnitude for Low Earth Orbit (LEO) satellites to calibrate their luminosity in terms of standard parameters such as distance, phase angle, and angular rate. …”
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Su-22 and MiG-29 aircraft as air-launch platforms for space rockets by Aleksander Olejnik, Piotr Zalewski

“…Preliminary analyses have shown that the aircraft indicated with the proposed mission profile will successfully carry out the task of launching a hypothetical rocket with a payload of at least 10 kg into low earth orbit. This confirmed the merits of the basic thesis of the research project. …”
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Expression of tardigrade disordered proteins impacts the tolerance to biofuels in a model cyanobacterium Synechocystis sp. PCC 6803 by Heao Zhang, Qingyang Liu, Qing Liang, Boxiang Wang, Zixi Chen, Jiangxin Wang

“…Tardigrades, known colloquially as water bears or moss piglets, are diminutive animals capable of surviving many extreme environments, even been exposed to space in low Earth orbit. Recently termed tardigrade disordered proteins (TDPs) include three families as cytoplasmic-(CAHS), secreted-(SAHS), and mitochondrial-abundant heat soluble (MAHS) proteins. …”
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Are the Significant Ionospheric Anomalies Associated with the 2007 Great Deep-Focus Undersea Jakarta–Java Earthquake? by Dan Tao, Guangxue Wang, Jiayi Zong, Yuanzheng Wen, Jinbin Cao, Roberto Battiston, Zhima Zeren

“…The significant TEC (total electron content) temporal and spatial anomalies were detected over the epicenter of 2007 <i>M</i><i>_w</i>7.5 Jakarta–Java earthquake, and they coincide well with the striking plasma anomalies in the ionosphere in situ observed by the LEO (low Earth orbit) satellite. The localization and synchronization of the disturbances during the earthquake suggest that these ionospheric anomalies are highly related to this large undersea earthquake. …”
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Direct-to-Satellite IoT Slotted Aloha Systems with Multiple Satellites and Unequal Erasure Probabilities by Felipe Augusto Tondo, Samuel Montejo-Sánchez, Marcelo Eduardo Pellenz, Sandra Céspedes, Richard Demo Souza

“…In this work, we considered that a cluster of IoT devices was under the coverage of a constellation of low-Earth orbit (LEO) satellites, while slotted Aloha was used as a medium access control technique. …”
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A More Reliable Orbit Initialization Method for LEO Precise Orbit Determination Using GNSS by Xuewen Gong, Jizhang Sang, Fuhong Wang, Xingxing Li

“…Precise orbit determination (POD) using GNSS has been rapidly developed and is the mainstream technology for the navigation of low Earth orbit (LEO) satellites. The initialization of orbit parameters is a key prerequisite for LEO POD processing. …”
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Analysis of Precise Orbit Predictions for a HY-2A Satellite with Three Atmospheric Density Models Based on Dynamic Method by Qiaoli Kong, Fan Gao, Jinyun Guo, Litao Han, Linggang Zhang, Yi Shen

“…Atmospheric density models are essential for predicting the low Earth orbit (LEO) satellites, such as HY-2A. Nevertheless, it is a complex process to determine the optimal atmospheric density model for orbit prediction. …”
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Air-rocket space launch system - as Responsive Space System by Dariusz Filipiak, Piotr Zalewski, Joanna Postek

“… Objectives The study was to analyze the concept of Responsive Space Systems alternative launch and set of the nanomicro satellites into Low Earth Orbit. The analysis focused on aircraft-rocket space systems, where platform for launching a rocket with a satellite is an aircraft.The aircraft in the role of the platform provides opportunities, system thus the operator doesn't need bases or space ports in European conditions. …”
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The Sentinel-3 SLSTR Atmospheric Motion Vectors Product at EUMETSAT by Kévin Barbieux, Olivier Hautecoeur, Maurizio De Bartolomei, Manuel Carranza, Régis Borde

“…EUMETSAT derives AMVs from several of its orbiting satellites, including the geostationary satellites (Meteosat), and its Low-Earth Orbit (LEO) satellites. The algorithm extracting the AMVs uses pairs or triplets of images, and tracks the motion of clouds or water vapour features from one image to another. …”
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A Case Study of Pc1 Waves Observed at the Polar Cap Associated with Proton Precipitation at Subauroral Latitudes by Giulia D’Angelo, Patrizia Francia, Marcello De Lauretis, Alexandra Parmentier, Tero Raita, Mirko Piersanti

“…The proposed investigation shows that high-latitude ground magnetometers in both hemispheres and the first China Seismo-Electromagnetic Satellite (CSES-01) at a Low Earth Orbit (LEO) detected in-synch Pc1 waves. In strict correspondence to this, energetic proton precipitation was observed at LEO with a simultaneous appearance of an isolated proton aurora at subauroral latitudes. …”
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Performance Analysis of DPSK Optical Communication for LEO-to-Ground Relay Link Via a GEO Satellite by Hyung-Chul Lim, Jong Uk Park, Mansoo Choi, Chul-Sung Choi, Jae-Dong Choi, Jongah Kim

“…Korea has also planned to establish an experimental communication system using a geostationary earth orbit (GEO) satellite and the Geochang station as an optical ground station for low Earth orbit (LEO)-to-ground optical relay links. …”
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Estimation of Moist Atmospheric Profiles from Refraction and Attenuation Measurements by Using Centimeter and Millimeter Wave Links between LEO Satellites by Zhihua Zhang, Xin Wang, Daren Lyu

“…Microwave occultation using centimeter and millimeter wave links between low Earth orbit (LEO) satellites provide a potential way to estimate the moist atmospheric profiles based on refraction and attenuation measurements, which is called the LEO-LEO microwave occultation (LMO) technique. …”
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A Low Cost Automatic Detection and Ranging System for Space Surveillance in the Medium Earth Orbit Region and Beyond by Radu Danescu, Anca Ciurte, Vlad Turcu

“…Due to cost considerations, the space surveillance solutions beyond the Low Earth Orbit region are mainly based on optical instruments. …”
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Unscented KALMAN Filtering for Spacecraft Attitude and Rate Determination Using Magnetometer by Sung-Woo Kim, Mohammad Abdelrabhman, Sang-Young Park, Kyu-Hong Choi

“…The filter is designed for small satellite in low Earth orbit, so the disturbance torques include gravity-gradient torque, magnetic disturbance torque, and aerodynamic drag torque. …”
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Review of PPP–RTK: achievements, challenges, and opportunities by Xingxing Li, Jiaxin Huang, Xin Li, Zhiheng Shen, Junjie Han, Linyang Li, Bo Wang

“…The new opportunities brought by the rapid development of low-cost markets, multiple sensors, and new-generation Low Earth Orbit (LEO) navigation constellation are also discussed. …”
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Precise orbit determination for a large LEO constellation with inter-satellite links and the measurements from different ground networks: a simulation study by Xingchi He, Urs Hugentobler, Anja Schlicht, Yufeng Nie, Bingbing Duan

“…Abstract Geodetic applications of Low Earth Orbit (LEO) satellites requires accurate satellite orbits. …”
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Modeling of Satellite Constellation in Modelica and a PHM System Framework Driven by Model Data Hybrid by Chan Liu, Liping Chen, Jianwan Ding, Duansen Shangguan

“…The new generation of low-earth-orbit (LEO) satellite constellation systems has the characteristics of low delay, strong signal and global coverage, and it is an important direction for the development of next-generation communication technology. …”
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Nonlinear Optics for Frequency-Doubling in Nanosatellite Laser Communication by Clark, James R., Cahoy, Kerri

“…However, while satellite-to-ground optical communication has been tested from low Earth orbit and the Moon, intersatellite optical links are still an area of active research and development. …”
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