Zobrazeno 1 - 10
of 290
pro vyhledávání: '"Chih-Yung Wen"'
Publikováno v:
Journal of Marine Science and Engineering, Vol 12, Iss 1, p 94 (2024)
This work addresses the motion control problem for a 4-degree-of-freedom unmanned underwater vehicle (UUV) in the presence of nonlinear dynamics, parametric uncertainties, system constraints, and time-varying external disturbances. A disturbance obse
Externí odkaz:
https://doaj.org/article/8aba3045623c47abb99ea8ec53a4dffc
Autor:
Haojun Luo, Chih-Yung Wen
Publikováno v:
Aerospace, Vol 10, Iss 11, p 924 (2023)
Unmanned Ground Vehicles (UGVs) and Unmanned Aerial Vehicles (UAVs) are commonly used for various purposes, and their cooperative systems have been developed to enhance their capabilities. However, tracking and interacting with dynamic UAVs poses sev
Externí odkaz:
https://doaj.org/article/a51d02cdcff1463186ad3116ba9949a4
Publikováno v:
Aerospace, Vol 10, Iss 10, p 879 (2023)
A three-dimensional upwind conservation element and solution element method (CESE) in cylindrical coordinates is first developed to effectively solve the unsteady reactive Euler equations governing a hydrogen–air rotating detonation engine (RDE) wi
Externí odkaz:
https://doaj.org/article/441d8c70acad4d0eb05eb37a5716d37b
Publikováno v:
AIP Advances, Vol 12, Iss 8, Pp 085320-085320-12 (2022)
State-to-state simulations of nonequilibrium flow in nozzles are made for a range of reservoir conditions and geometries. The geometry of the converging section and throat has little influence on the thermochemistry of the flow. Higher reservoir pres
Externí odkaz:
https://doaj.org/article/bbc3fada4c734212b9a927c839ab2837
Publikováno v:
Sensors, Vol 23, Iss 7, p 3418 (2023)
Traditional methods on crack inspection for large infrastructures require a number of structural health inspection devices and instruments. They usually use the signal changes caused by physical deformations from cracks to detect the cracks, which is
Externí odkaz:
https://doaj.org/article/a1e080766a6d4967b4dd2e5e81b65130
Publikováno v:
IEEE Access, Vol 9, Pp 31493-31503 (2021)
Mapping, as the back-end of perception and the front-end of path planning in the modern UAV navigation system, draws our interest. Considering the requirements of UAV navigation and the features of the current embedded computation platforms, we desig
Externí odkaz:
https://doaj.org/article/ef0d071315204ca2a29da6d0a688c007
Publikováno v:
IEEE Access, Vol 8, Pp 218348-218359 (2020)
This work presents the implementation of system identification and model predictive control for a tail-sitter unmanned aerial vehicle (UAV) in cruise flight. The mathematical model of longitudinal and lateral directions of the UAV has been derived in
Externí odkaz:
https://doaj.org/article/a3a03b45d97b4d88adec8e04281aef57
Publikováno v:
Aerospace, Vol 9, Iss 11, p 673 (2022)
This paper proposes a multi-stage dueling deep Q-network (MS-DDQN) algorithm to address the high-speed aerial vehicle evasion problem. High-speed aerial vehicle pursuit and evasion are an ongoing game attracting significant research attention in the
Externí odkaz:
https://doaj.org/article/00f7dd7ab8464aea9a6cb693bc8ea829
Publikováno v:
Aerospace, Vol 9, Iss 8, p 460 (2022)
A dynamic model that considers both linear and complex nonlinear effects extensively benefits the model-based controller development. However, predicting a detailed aerodynamic model with good accuracy for unmanned aerial vehicles (UAVs) is challengi
Externí odkaz:
https://doaj.org/article/0203e9a97c794ef5b435b43f2899a993
Publikováno v:
Remote Sensing, Vol 14, Iss 16, p 3857 (2022)
Feature matching is a fundamental procedure in several image processing methods applied in remote sensing. Multispectral sensors with different wavelengths can provide complementary information. In this work, we propose a multispectral line segment m
Externí odkaz:
https://doaj.org/article/ad73aacc892640a8bffce438cb3bfb3f