Results 21 to 30 of about 454 (139)
Development of a Hardware-In-Loop (HIL) Simulator for Spacecraft Attitude Control Using Momentum Wheels [PDF]
Journal of Astronomy and Space Sciences, 2008 In this paper, a Hardware-In-the-Loop simulator to simulate attitude control of spacecraft using momentum wheels is developed. The simulator consists of a spherical air bearing system allowing rotation and tilt in all three axes, three momentum wheels ...
Dohee Kim +3 more
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A Novel Movable UWB Localization System Using UAVs
IEEE Access, 2022 Recently, interest in ultrawideband (UWB)-based localization systems has increased in various application fields. However, since UWB anchors are usually fixed, they work only within the limited range that UWB measurement signals can reach.
Sungtae Moon, Wonkeun Youn
doaj +1 more source
Sine Rotation Vector Method for Attitude Estimation of an Underwater Robot
Sensors, 2016 This paper describes a method for estimating the attitude of an underwater robot. The method employs a new concept of sine rotation vector and uses both an attitude heading and reference system (AHRS) and a Doppler velocity log (DVL) for the purpose of ...
Nak Yong Ko, Seokki Jeong, Youngchul Bae
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Design and Implementation of an AHRS Based on MEMS Sensors and Complementary Filtering
Advances in Mechanical Engineering, 2014 This paper presents design and implementation of an attitude and heading reference system (AHRS) based on low-cost MEMS sensors and complementary filtering (CF).
Yangzhu Wang, Ning Li, Xi Chen, Miao Liu
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Attitude Calculation of AHRS Based on Geomagnetic Field Adaptive Correction
Xibei Gongye Daxue Xuebao, 2019 In the attitude and heading reference system (AHRS), the output noise of MEMS gyroscope is too large, zero drift can not be eliminated completely, and the output of angular rate is easy to be interfered, which leads to low accuracy and large accumulated ...
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A Robust Nonlinear Observer for Real-Time Attitude Estimation Using Low-Cost MEMS Inertial Sensors
Sensors, 2013 This paper deals with the attitude estimation of a rigid body equipped with angular velocity sensors and reference vector sensors. A quaternion-based nonlinear observer is proposed in order to fuse all information sources and to obtain an accurate ...
Lizeth Torres +4 more
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Gain-Scheduled Complementary Filter Design for a MEMS Based Attitude and Heading Reference System
Sensors, 2011 This paper describes a robust and simple algorithm for an attitude and heading reference system (AHRS) based on low-cost MEMS inertial and magnetic sensors.
Sungsu Park +3 more
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Global Navigation Satellite System Spoofing Detection in Inertial Satellite Navigation Systems
Inventions, 2023 The susceptibility of global navigation satellite systems (GNSSs) to interference significantly limits the possibility of their use. From the standpoint of possible consequences, the most dangerous interference is the so-called spoofing.
Maksim Zharkov +3 more
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Maternal and infant gut microbiome
iMeta, EarlyView.The maternal–infant continuum involves critical windows of host–microbiota co‐adaptation. Preconception, maternal and paternal microbiomes modulate immunity and reproduction. During pregnancy, a gut–placenta axis emerges, where microbial metabolites influence fetal growth or contribute to complications like gestational diabetes mellitus (GDM ...
Huidi Wang +25 more
wiley +1 more source
Journal of Field Robotics, EarlyView.ABSTRACT Marine operations traditionally rely on human intervention, a costly and disruptive method. Autonomous surface vehicles (ASVs) offer a powerful alternative, capable of operating autonomously, for extended periods, and with various sensors for various missions.
Ayman El Qemmah +4 more
wiley +1 more source