Results 31 to 40 of about 30,391 (147)

Breaking the Diffraction Barrier: A Hybrid Framework Combining Physical Modulation and Neural Diffusion for Subdiffraction Target Recovery

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Although most aircraft are equipped with active communication systems, such as ADS-B and satellite links, these systems may fail in emergencies or when signals are lost. At this point, remote sensing, as a passive observation method that does not require
Xuening Liu, Zengshan Yin, Chongbin Guo, Changhao Wu   +3 more
doaj   +1 more source

Optimization of Test Mass Motion State for Enhancing Stiffness Identification Performance in Space Gravitational Wave Detection

Aerospace
In space gravitational wave detection, various physical effects in the spacecraft, such as self-gravity, electricity, and magnetism, will introduce undesirable parasitic stiffness.
Ningbiao Tang, Ziruo Fang, Zhongguang Yang, Zhiming Cai, Haiying Hu, Huawang Li   +5 more
doaj   +1 more source

Deep Learning-Based Digital Surface Model Reconstruction of ZY-3 Satellite Imagery

Remote Sensing
This study introduces a novel satellite image digital surface model (DSM) reconstruction framework grounded in deep learning methodology. The proposed framework effectively utilizes a rational polynomial camera (RPC) model to establish the mapping ...
Yanbin Zhao, Yang Liu, Shuang Gao, Guohua Liu, Zhiqiang Wan, Denghui Hu   +5 more
doaj   +1 more source

GHGPSE-Net: a method towards spaceborne automated extraction of greenhouse-gas point sources using point-object-detection deep neural network [PDF]

Geoscientific Model Development
Point sources account for a large portion of anthropogenic greenhouse gas (GHG) emissions. Timely detection, localization, and quantification of these emissions are critical for supporting carbon neutrality efforts.
Y. Pang, Y. Pang, D. Hu, L. Tian, S. Gao, G. Liu, G. Liu   +6 more
doaj   +1 more source

Fault Prediction for Rotating Mechanism of Satellite Based on SSA and Improved Informer

Applied Sciences
The rotational mechanism, which plays a critical role in energy supply, payload antenna pointing, and attitude stabilization in satellites is essential for the overall functionality and performance stability of the satellite.
Qing Lan, Ye Zhu, Baojun Lin, Yizheng Zuo, Yi Lai   +4 more
doaj   +1 more source

Editorial: Microsatellite and microsatellite instability

Frontiers in Genetics, 2023
Alexandre How-Kit, Kai Ye, Kai Ye, Kai Ye, Kai Ye, Kai Ye   +5 more
openaire   +3 more sources

Mini- and Microsatellites

Environmental Health Perspectives, 1997
While the faithful transmission of genetic information requires a fidelity and stability of DNA that is involved in translation into proteins, it has become evident that a large part of noncoding DNA is organized in repeated sequences, which often exhibit a pronounced instability and dynamics.
openaire   +2 more sources

Complex Illumination-Aware 3D Gaussian Reconstruction for Uncooperative Space Objects

Aerospace
High-precision 3D reconstruction of non-cooperative space targets is a critical technology for on-orbit servicing (OOS) and situational awareness, driven by the growing number of OOS missions.
Ziang Qu, Zhang Zhang, Ruiqi Xun, Junlan Zhou, Liang Chang   +4 more
doaj   +1 more source

A time-dependent reliability model for spatial intermittent motion mechanisms via constant-amplitude alternating fatigue load equivalent method

Scientific Reports
Spatial intermittent motion mechanisms encompass non-continuously operating mechanisms in spacecraft, such as rotary tables, Solar Array Drive Assemblies (SADA), and spaceborne camera focusing mechanisms.
Penghui Cheng, Tianhe Zhang, Yongsheng Zhu   +2 more
doaj   +1 more source

Towards Client Selection in Satellite Federated Learning

Applied Sciences
Large-scale low Earth orbit (LEO) remote satellite constellations have become a brand new, massive source of space data. Federated learning (FL) is considered a promising distributed machine learning technology that can communicate optimally using these ...
Changhao Wu, Siyang He, Zengshan Yin, Chongbin Guo   +3 more
doaj   +1 more source