Results 31 to 40 of about 382,794 (354)
Enhanced Cell Controller for Aerospace Manufacturing
Advances in Robotics & Automation, 2016 Aerospace manufacturing industry is unique in that production typically focuses on high variety and quality but extremely low volume. Manufacturing processes are also sometimes unique and not repeatable and, hence, costly. Production is getting more expensive with the introduction of industrial robots and their cells.
Asif, Seemal, Webb, Philip
openaire +3 more sources
Low-cost RF 802.11g telemetry for flight guidance system development
The Journal of Engineering, 2019 This work investigates the potential for off-the-shelf hardware to be used as a very low-cost replacement to the expensive missile test telemetry currently used by military equipment suppliers to develop flight guidance systems.
Philip A. Catherwood +2 more
doaj +1 more source
MathematicsElectromechanical Actuators (EMAs) are critical components in More-Electric Aircraft (MEA) and Reusable Launch Vehicles (RLVs), yet they remain vulnerable to jamming and fatigue failures under high-stress flight maneuvers.
Le Qi
doaj +1 more source
Autonomous Landing of a UAV on a Moving Platform Using Model Predictive Control
Drones, 2018 Developing methods for autonomous landing of an unmanned aerial vehicle (UAV) on a mobile platform has been an active area of research over the past decade, as it offers an attractive solution for cases where rapid deployment and recovery of a fleet of ...
Yi Feng +4 more
doaj +1 more source
IMPLEMENTATION STRATEGY OF VISIBLE AND NEAR-INFRARED IMAGING SPECTROMETER ON YUTU-2 ROVER BASED ON VISION MEASUREMENT TECHNOLOGY [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020 The Chang'e-4 successfully landed on the far side of the moon in January 2019. By the 12th lunar day, its Yutu-2 rover had achieved a breakthrough travel distance of greater than 300 m.
T. Yu +12 more
doaj +1 more source
Navigation Grade MEMS IMU for A Satellite
Micromachines, 2021 This paper presents a navigation grade micro-electromechanical system (MEMS) inertial measurement unit (IMU) that was successfully applied for the first time in the Lobster-Eye X-ray Satellite in July 2020.
Wanliang Zhao +6 more
doaj +1 more source
Angle-Only Cooperative Orbit Determination Considering Attitude Uncertainty
Sensors, 2023 In this paper, a novel concept for cooperative orbit determination (OD) using inter-spacecraft angle-only measurements is proposed. Different from the conventional cooperative OD that only estimates orbit states, the attitude of the observer spacecraft ...
Yishuai Shi +5 more
doaj +1 more source
Coordinated Standoff Target Tracking Guidance Method for UAVs
IEEE Access, 2018 We need a coordinated control method to continuously track a moving target using a group of UAVs. In this paper, we study the predicted reference point guidance method, where the target is considered to move with a constant velocity in a very short time ...
Zhuofan Xu +3 more
doaj +1 more source
A Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller
International Journal of Adaptive Control and Signal Processing, EarlyView.Block Diagram of the Robust Adaptive One‐Sample‐Ahead Preview Super‐Twisting Sliding Mode Controller. ABSTRACT This article introduces a discrete‐time robust adaptive one‐sample‐ahead preview super‐twisting sliding mode controller. A stability analysis of the controller by Lyapunov criteria is developed to demonstrate its robustness in handling both ...
Guilherme Vieira Hollweg +5 more
wiley +1 more source
Guidance and Control strategies for aerospace vehicles [PDF]
A neighboring optimal guidance scheme was devised for a nonlinear dynamic system with stochastic inputs and perfect measurements as applicable to fuel optimal control of an aeroassisted orbital transfer vehicle.
Charalambous, C. D. +2 more
core +7 more sources