Results 21 to 30 of about 30,391 (147)

Design of High-Performance and General-Purpose Satellite Management Unit Based on Rad-Hard Multi-Core SoCand Linux

Aerospace, 2023
Since deep space exploration tasks, such as space gravitational wave detection, put forward increasingly higher requirements for the satellite platform, the scale and complexity of the satellite management unit (SMU) software are also increasing, and the
Lu Li, Junwang He, Dongxiao Xu, Wen Chen, Jinpei Yu, Huawang Li   +5 more
doaj   +1 more source

Research on in-orbit self-organizing network strategy for cellularized spacecraft based on improved AODV protocol

Xibei Gongye Daxue Xuebao
The cellularized spacecraft is composed of cellularized monomers, capable of in-orbit assemble, reconstructed and maintenance, and is one of the important direction for developing the large-scale spacecrafts in the future.
JI Qingfeng, GUO Chongbin, CHEN Chao
doaj   +1 more source

A Lyapunov-Optimized Dynamic Task Offloading Strategy for Satellite Edge Computing

Applied Sciences, 2023
Satellite edge computing (SEC) has garnered significant attention for its potential to deliver services directly to users. However, the uneven distribution of receiving tasks among satellites in the constellation can lead to uneven utilization of ...
Yifei Hu, Wenbin Gong, Fangming Zhou
doaj   +1 more source

A Complement Method for Magnetic Data Based on TCN-SE Model

Sensors, 2022
The magnetometer is a vital measurement component for attitude measurement of near-Earth satellites and autonomous magnetic navigation, and monitoring health is significant. However, due to the compact structure of the microsatellites, the stray magnetic
Wenqing Chen, Rui Zhang, Chenguang Shi, Ye Zhu, Xiaodong Lin   +4 more
doaj   +1 more source

Research on Task Satellite Selection Method for Space Object Detection LEO Constellation Based on Observation Window Projection Analysis

Aerospace, 2021
Aiming at the task planning and scheduling problem of space object detection LEO constellation (SODLC) for detecting space objects in deep space background, a method of SODLC task satellite selection based on observation window projection analysis is ...
Shengyu Zhang, Zhencai Zhu, Haiying Hu, Yuqing Li   +3 more
doaj   +1 more source

Constrained Widely Linear Beamforming Antijammer Technique for Satellite-Borne Distributed Sensor Data Acquisition System

International Journal of Distributed Sensor Networks, 2016
Widely linear (WL) adaptive beamforming algorithms are proposed based on constrained minimum variance (CMV) and constrained constant modulus (CCM) criteria, respectively, to fully exploit both the desired signal and interferences' noncircularity ...
Yongyong Wang, Guang Liang, Lulu Zhao, Jinpei Yu, Lianxing He   +4 more
doaj   +1 more source

Adaptive hierarchical filtering particle swarm optimization for multiple magnetic dipoles modeling of space equipment

Scientific Reports
Accurate modeling of multiple magnetic dipoles is essential for characterizing spacecraft-generated magnetic fields and mitigating their interference with sensitive onboard instruments.
Ye Liu, Xingjian Shi, Shengfeng Meng, Wenzhe Yang, Ziruo Fang, Zhiming Cai, Huawang Li   +6 more
doaj   +1 more source

SpaceLight: A Framework for Enhanced On-Orbit Navigation Imagery

Aerospace
In the domain of space rendezvous and docking, visual navigation plays a crucial role. However, practical applications frequently encounter issues with poor image quality.
Zhang Zhang, Jiaqi Feng, Liang Chang, Lei Deng, Dong Li, Chaoming Si   +5 more
doaj   +1 more source

A Simulated Annealing Algorithm with Tabu List for the Multi-Satellite Downlink Schedule Problem Considering Waiting Time

Aerospace, 2022
In the multi-satellite and multi-ground station downlink task scheduling problem, the waiting time from the proposal of the task to the execution will affect its validity.
Yan Liu, Shengyu Zhang, Haiying Hu
doaj   +1 more source

Robust Widely Linear Beamforming With Multiple Uncertainty Sets

IEEE Access, 2022
The widely linear minimum variance distortionless response (WL-MVDR) beamformer has a better performance than the conventional MVDR beamformer when the received signals are potentially noncircular. However, it is sensitive to the extended steering vector
Jiashuo Yang, Guang Liang
doaj   +1 more source