|
|
|
|
|
Bangchu Zhang, Hao Fu, Weiyu Zhu, Kuijian Yang and Yuanming Xu
The thermal problem of high-altitude airships has an essential impact on position control and energy system performance. Adjusting the airship?s attitude angle causes differences in thermal performance during position alterations. This paper studies an a...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yankai Li, Yulong Huang, Dongping Li, Yuan Sun, Han Liu and Yongze Jin
In this paper, we propose an output feedback flight tracking control scheme for helicopter attitude and altitude systems with unmeasured states under full state constraints. Firstly, a state observer is constructed based on the measured output signals, w...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shuaibin An, Jianwen Zang, Ming Yan, Baiyang Zhu and Jun Liu
Wide-speed-range vehicles are characterized by high flight altitude and high speed, with significant changes in the flight environment. Due to the strong uncertainty of its aerodynamic characteristics, higher requirements are imposed on attitude control....
ver más
|
|
|
|
|
|
|
|
|
|
|
Eduardo Gallo and Antonio Barrientos
This article proposes a method to diminish the horizontal position drift in the absence of GNSS (Global Navigation Satellite System) signals experienced by the VNS (Visual Navigation System) installed onboard a UAV (Unmanned Air Vehicle) by supplementing...
ver más
|
|
|
|
|
|
|
|
|
|
|
Xiaojun Yu, Shibin Luo and Haiqiao Liu
Focusing on the large maneuver penetration of the hypersonic glide vehicle with multiple constraints and uncertain disturbance, a robust integrated guidance and control law, which can achieve the snake-shape maneuver, is designed. A snake-shape maneuver ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Shuming Yang, Changlin Xie, Yuqiang Cheng, Dianyi Song and Mengyu Cui
The propulsion system is one of the important and vulnerable sub-systems in a strap-on launch vehicle. Among different failure modes, the thrust drop fault is the most common and remediable one. It degrades vehicle attitude tracking ability directly. To ...
ver más
|
|
|
|
|
|
|
|
|
|
|
Ali Barzegar and Deok-Jin Lee
This research study presents a new adaptive attitude and altitude controller for an aerial robot. The proposed controlling approach employs a reinforcement learning-based algorithm to actively estimate the controller parameters of the aerial robot. In de...
ver más
|
|
|
|
|
|
|
|
|
|
|
Carlo E. D. Riboldi and Alberto Rolando
Despite offering often significant advantages with respect to other flying machines, especially in terms of flight endurance, airships are typically harder to control. Technological solutions borrowed from the realm of shipbuilding, such as bow thrusters...
ver más
|
|
|
|
|
|
|
|
|
|
|
Zhao Deng, Fuqiang Bing, Zhiming Guo and Liaoni Wu
Due to the complexity of landing environments, precision guidance and high-precision control technology have become key to the rope-hook recovery of shipborne unmanned aerial vehicles (UAVs). The recovery process was divided into three stages and a reaso...
ver más
|
|
|
|
|
|
|
|
|
|
|
Yanming Guo, Yan Bai, Shuaihe Gao, Zhibing Pan, Zibin Han, Decai Zou, Xiaochun Lu and Shougang Zhang
An ultrahigh precise clock (space optical clock) will be installed onboard a low-orbit spacecraft (a usual expression for a low-orbit satellite operating on an orbit at an altitude of less than 1000 km) in the future, which will be expected to obtain bet...
ver más
|
|
|
|
|
|