Results 31 to 40 of about 10,016,579 (306)

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, Yuxiang Cheng, Sihan Zhao, Xiaomao Hu, Yijie Rong, Jie Duan, Jiawei Chen   +6 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, Z. Liu, Z. Rong, Y. Wang, J. Wang, S. Gou, L. Li, W. Wan, X. He, K. Di, R. Ke, K. Zhang, Y. You   +12 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, Ruixuan Wei, Xiaolin Zhao, Shulei Wang   +3 more
doaj   +1 more source

Analysis of Linear L1 Adaptive Control Architectures for Aerospace Applications [PDF]

, 2012
In some situations the closed-loop system obtained by L1 adaptive control is equivalent to linear systems. The architectures of these systems are investigated and compared with internal model control and the input observer architecture.
Rolf Johansson, Pettersson, Anders, Åström, Karl Johan, Anders Pettersson, Johansson, Rolf, Karl J. Astrom, Robertsson, Anders, Anders Robertsson, Robertsson, Anders,, Åström, Karl Johan,, Johansson, Rolf,, Lund University., Pettersson, Anders,   +12 more
core   +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, Junkui Wang, Chuankai Liu, Yangjun Wang, Qingchao Xu, Xingyu Zhou   +5 more
doaj   +1 more source

Aerospace Best Paper Awards 2018

, 2020
Aerospace has launched annual awards to recognize outstanding papers published in the journal [...
Aerospace Editorial Office Aerospace Editorial Office
core   +1 more source

Characterization of Defect Distribution in an Additively Manufactured AlSi10Mg as a Function of Processing Parameters and Correlations with Extreme Value Statistics

Advanced Engineering Materials, EarlyView.
Predicting extreme defects in additive manufacturing remains a key challenge limiting its structural reliability. This study proposes a statistical framework that integrates Extreme Value Theory with advanced process indicators to explore defect–process relationships and improve the estimation of critical defect sizes. The approach provides a basis for
Muhammad Muteeb Butt, Varma Kvvssn, Hossein Laieghi, Zia Uddin, Peyman Ansari, E. Kıvanç Sadak, Can Barış Toprak, Hüseyin Kızıl, Enrico Salvati   +8 more
wiley   +1 more source

Implementation of unknown parameter estimation procedure for hybrid and discrete non‐linear systems

IET Radar, Sonar & Navigation
The application of the hybrid extended Kalman filter (HEKF), hybrid unscented Kalman filter (HUKF), hybrid particle filter (HPF), and hybrid extended Kalman particle filter (HEKPF) is discussed for hybrid non‐linear filter problems, when prediction ...
Mahdi Razm‐Pa
doaj   +1 more source

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Three dimensional cooperative guidance for intercepting a manoeuvering target

IET Control Theory & Applications
In this paper, an optimal distributed guidance law is proposed for cooperatively intercepting a manoeuvering target in three dimensional (3D) framework. Based on the 3D kinematic model of interceptors and the target, the kinematic engagement equations in
Chang Yu, Bing Zhu, Jianying Zheng, Wei Wang   +3 more
doaj   +1 more source