Zobrazeno 1 - 10
of 38
pro vyhledávání: '"Weiduo Hu"'
Publikováno v:
Frontiers in Space Technologies, Vol 5 (2024)
For convenient comparison and clear physical meaning, the gravity on the surface of a homogeneous cube and on spheres inside, outside, and intersecting about it is calculated by polyhedral or harmonic expansion methods. In addition, the gravity coeff
Externí odkaz:
https://doaj.org/article/19a9b590a6444d34b566d6467580cdf5
Publikováno v:
Applied Sciences, Vol 14, Iss 10, p 4058 (2024)
For the convenience of comparison with previous literature, the gravity calculations are revisited for the Asteroid 4769 Castalia, but with extensions on its surface and on intersecting planes and spheres around it, using the polyhedron and harmonic
Externí odkaz:
https://doaj.org/article/f0be7583e2954cc282050db5d659e765
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 10 (2023)
The semi-analytical model (based on the averaging technique) for long-term orbital evolution has proven to be useful in both astrophysical and astrodynamical contexts. In this secular approximation, orbits exhibit rich evolutionary behaviors under th
Externí odkaz:
https://doaj.org/article/6a43da91316843968093e69459562381
Publikováno v:
IET Computer Vision, Vol 9, Iss 6, Pp 914-925 (2015)
A robust ellipse detector is proposed. The detector preprocesses the edge map by removing all the isolated points and conjunction points, and exploits polygonal curve to extract the elliptical arcs. A non‐iterative geometric distance computation me
Externí odkaz:
https://doaj.org/article/ff8320938de64375b2b4abca0cae9d42
Publikováno v:
Frontiers in Space Technologies; 2024, p1-13, 13p
Publikováno v:
Journal of Aerospace Information Systems. :1-11
The article presents Deep Coherent Point Drift (DeepCPD), a neural-network approach for estimating the six-degrees-of-freedom pose of noncooperative spacecraft during autonomous rendezvous and docking through point cloud data. The method registers un
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::314f5dd39058973135ac5c8708387edf
https://doi.org/10.2514/1.i011179
https://doi.org/10.2514/1.i011179
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 59:311-335
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b4d23aa76d5198e84835aadf109f6bc
https://doi.org/10.1109/taes.2022.3184660
https://doi.org/10.1109/taes.2022.3184660
Publikováno v:
Journal of Guidance, Control, and Dynamics. 44:1707-1720
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d953f3f56e7f261ec877dac104fa4423
https://doi.org/10.2514/1.g005042
https://doi.org/10.2514/1.g005042
Publikováno v:
IEEE Transactions on Aerospace and Electronic Systems. 57:1538-1561
This article presents an innovative framework of real-time vision-based pose tracking for asteroid using the contour information of the asteroid image. At the first-time instant, the tracking is initialized by the distance-based template matching and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e43f899c7a862b506d076187aaf3359e
https://doi.org/10.1109/taes.2020.3044116
https://doi.org/10.1109/taes.2020.3044116
Autor:
Weiduo Hu, Khurram Shahzad Sana
Publikováno v:
Chinese Journal of Aeronautics, Vol 34, Iss 1, Pp 50-67 (2021)
This paper proposes a novel hybrid algorithm called Fractional-order Particle Swarm optimization Gravitational Search Algorithm (FPSOGSA) and applies it to the trajectory planning of the hypersonic lifting reentry flight vehicles. The proposed method
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::838b1aeebb0fd1818823cbd923a66595
https://doi.org/10.1016/j.cja.2020.09.039
https://doi.org/10.1016/j.cja.2020.09.039