Zobrazeno 1 - 10
of 353
pro vyhledávání: '"Zhencai, Zhu"'
Publikováno v:
IET Radar, Sonar & Navigation, Vol 18, Iss 9, Pp 1494-1514 (2024)
Abstract Bayesian filtering provides an effective approach for the orbit determination of a non‐cooperative target using angle measurements from multiple CubeSats. However, existing methods face challenges such as low reliability and limited estima
Externí odkaz:
https://doaj.org/article/9110d6871c394d17a90fee850958218d
Publikováno v:
Canadian Journal of Remote Sensing, Vol 50, Iss 1 (2024)
According to the infrared patch image (IPI) model theory, the infrared image background has a low rank and the target is sparse. The low-rank model can be used to separate the background and identify the target. However, in a noisy environment, the r
Externí odkaz:
https://doaj.org/article/403a744cd49e4d878a8af4985e082531
Publikováno v:
Shock and Vibration, Vol 2024 (2024)
With the intensification and large scale of coal mining, scraper conveyors are developing towards high power, large volume, long haul distance, and high reliability. It is more and more important to obtain the dynamic tension of the scraper chain wit
Externí odkaz:
https://doaj.org/article/54fa9945bd05471fb0e79907c1896b2a
Publikováno v:
Applied Sciences, Vol 14, Iss 11, p 4499 (2024)
The working environment of mining electric locomotives is wet and muddy coal mine roadway. Due to low friction between the wheel and rail and insufficient utilization of creep rate, there may be idling or slipping between the wheels and rails of mini
Externí odkaz:
https://doaj.org/article/be9b00b96a5f4996a46d3f9eca02f2fa
Publikováno v:
Journal of Low Frequency Noise, Vibration and Active Control, Vol 42 (2023)
Torsion deformable spatial beam and Costello theory are used to establish longitudinal-torsional-lateral coupled model of round balance rope. Based on Coulomb’s friction law and longitudinal-torsional-lateral coupled model, the nonlinear coupled dy
Externí odkaz:
https://doaj.org/article/ba29cf426449405bbc667f5475f2ecdb
Publikováno v:
IEEE Access, Vol 11, Pp 91100-91115 (2023)
The algorithm for star identification is a crucial technology for determining the orientation of spacecraft using star sensors. Traditional star identification algorithms achieve matching by seeking a unique or a few optimal solutions. However, in hi
Externí odkaz:
https://doaj.org/article/4e65dd89831046419f99de5b9f6f4f64
Autor:
Yuxing Peng, Kun Huang, Chenbo Ma, Zhencai Zhu, Xiangdong Chang, Hao Lu, Qing Zhang, Chunming Xu
Publikováno v:
Friction, Vol 11, Iss 5, Pp 763-784 (2023)
Abstract The fretting wear among the steel wires aggravates the wire rope’s fatigue damage, affects the service performance of the wire ropes, and threatens mine hoisting safety. In this paper, the practical friction behavior and wear mechanism amo
Externí odkaz:
https://doaj.org/article/bc53dd93fd17482293250aa81a29330e
Publikováno v:
Space: Science & Technology, Vol 3 (2023)
The classical interactive multimodel (IMM) algorithm has some disadvantages in tracking a noncooperative continuous thrust maneuvering spacecraft, such as poor steady-state accuracy, difficult selection of subfilter parameters, and mismatched model j
Externí odkaz:
https://doaj.org/article/185295e8a949492ab67f9f05cae4a025
Publikováno v:
Micromachines, Vol 14, Iss 8, p 1552 (2023)
Space vehicles such as missiles and aircraft have relatively long tracking distances. Infrared (IR) detectors are used for small target detection. The target presents point target characteristics, which lack contour, shape, and texture information. T
Externí odkaz:
https://doaj.org/article/ac1d464fa0224f8e99c6c9aaee111abd
Publikováno v:
Aerospace, Vol 10, Iss 5, p 449 (2023)
The infrared detector is adopted to track and recognize targets, including missiles and airplanes. These targets are usually far from the detector. The pixel size is less than 9×9 when the image has 256×256 pixels. They are regarded as the IR small
Externí odkaz:
https://doaj.org/article/700ebd1c260b4654b5fbb2158847a249