Results 1 to 10 of about 47,819,563 (268)
Sensors, 2023 This paper proposes a novel trajectory planning algorithm to design an end-effector motion profile along a specified path. An optimization model based on the whale optimization algorithm (WOA) is established for time-optimal asymmetrical S-curve velocity
Tianyu Liu +5 more
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Sensors, 2022 In order to solve the tracking accuracy problem of the redundant manipulator, a PI control method with Henry gas solubility optimization parameter regulator (PI-HGSO) is proposed in this paper.
Meijiao Liu +3 more
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Novel Pointing and Stabilizing Manipulator for Optical Space Payloads
Applied Sciences, 2023 Considering that the Line-Of-Sight (LOS) of a small optical payload is mainly connected with the angular motions while insensitive to linear motion, a novel pointing and stabilizing manipulator was proposed for small payloads on a large spacecraft.
Hui Zhang +3 more
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Obstacle Avoidance in a Three-Dimensional Dynamic Environment Based on Fuzzy Dynamic Windows
Applied Sciences, 2021 This paper presents a real-time path planning approach for controlling the motion of space-based robots. The algorithm can plan three-dimensional trajectories for agents in a complex environment which includes numerous static and dynamic obstacles, path ...
Ce Xu, Zhenbang Xu, Mingyi Xia
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Design and Dynamic Control: A Free-Flying Space Robot Inspired by Water Striders
Biomimetics, 2023 This work designed a free-flying space robot (FFSR) that simulates the on-orbit assembly of large space telescopes, drawing inspiration from the flexible movement of water striders on water surfaces.
Huayang Sai +3 more
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Coarse-to-Fine Image Matching-Based Footprint Camera Calibration of the GF-7 Satellite
Sensors, 2021 The GF-7 satellite is China’s first high-resolution stereo mapping satellite that reaches sub-meter resolution, equipped with new-type payloads, such as an area array footprint camera that can achieve synchronization acquisition of laser spots.
Lirong Liu +5 more
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Applied Sciences, 2020 Aiming at on-orbit automatic assembly, an improved uncalibrated visual servo strategy for hyper-redundant manipulators based on projective homography is proposed.
Jinlin Gu +5 more
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Modification technique for a space manipulator Joint's thermal model parameters
Case Studies in Thermal Engineering, 2023 This study takes into account the multi-point thermal model's automatic adjustment mechanism. The combined heat balance test temperature is used as the genetic algorithm's optimization target value. To minimize time and resources when running simulations,
Min Zhang +4 more
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An On-Orbit Calibration Method of Star Sensor Based on Angular Distance Subtraction
IEEE Photonics Journal, 2021 Star sensor needs real-time calibration to improve its navigation accuracy. Compared with other parameters, the position of the principal point is more easily affected by the measurement error, which leads to low calibration accuracy.
Liang Wu +3 more
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Research of Materials and Manufacturing Technology System for On-orbit Manufacturing [PDF]
E3S Web of Conferences, 2023 On-orbit manufacturing is affected by space microgravity, high vacuum, large temperature variation, strong radiation and other environmental factors, which also puts forward new requirements for materials and process methods suitable for on-orbit ...
Jiayong Yan +6 more
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