Results 21 to 30 of about 356,828 (265)

Attitude Estimation from Polarimetric Cameras [PDF]

open access: yes2018 IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS), 2018
In the robotic field, navigation and path planning applications benefit from a wide range of visual systems (e.g, perspective cameras, depth cameras, catadioptric cameras, etc.). In outdoor conditions, these systems capture information in which sky regions cover a major segment of the images acquired.
Rastgoo, Mojdeh   +3 more
openaire   +2 more sources

Fast AHRS Filter for Accelerometer, Magnetometer, and Gyroscope Combination with Separated Sensor Corrections

open access: yesSensors, 2020
A new predictor–corrector filter for attitude and heading reference systems (AHRS) using data from an orthogonal sensor combination of three accelerometers, three magnetometers and three gyroscopes is proposed.
Josef Justa   +2 more
doaj   +1 more source

Autonomous Control of the Large-Angle Spacecraft Maneuvers in a Non-Cooperative Mission

open access: yesSensors, 2022
Aiming at the large-angle maneuver control problem of tracking spacecraft attitude in non-cooperative target rendezvous and proximity tasks, under the condition that the target spacecraft attitude information is unknown and the actuator output has ...
Cheng Huang, Tianzeng Cao, Jinglin Huang
doaj   +1 more source

Non-Cooperative Target Attitude Estimation Method Based on Deep Learning of Ground and Space Access Scene Radar Images

open access: yesMathematics, 2023
Determining the attitude of a non-cooperative target in space is an important frontier issue in the aerospace field, and has important application value in the fields of malfunctioning satellite state assessment and non-cooperative target detection in ...
Chongyuan Hou   +9 more
doaj   +1 more source

On attitude estimation with smartphones [PDF]

open access: yes2017 IEEE International Conference on Pervasive Computing and Communications (PerCom), 2017
We investigate the precision of attitude estimation algorithms in the particular context of pedestrian navigation with commodity smartphones and their inertial/magnetic sensors. We report on an extensive comparison and experimental analysis of existing algorithms. We focus on typical motions of smartphones when carried by pedestrians.
Michel, Thibaud   +3 more
openaire   +2 more sources

Attitude heading reference algorithm based on transformed cubature Kalman filter

open access: yesMeasurement + Control, 2020
Stable and accurate attitude estimation is the key to the autonomous control of unmanned aerial vehicle. The Attitude Heading Reference System using micro-electro-mechanical system inertial measurement unit and magnetic sensor as measurement sensors is ...
Yong-jun Yu   +2 more
doaj   +1 more source

Three-Axis Attitude Estimation Of Satellite Through Only Two-Axis Magnetometer Observations Using LKF Algorithm

open access: yesMetrology and Measurement Systems, 2015
Estimation of satellite three-axis attitude using only one sensor data presents an interesting estimation problem. A flexible and mathematically effective filter for solving the satellite three-axis attitude estimation problem using two-axis magnetometer
Mehrjardi Mohamad Fakhari   +2 more
doaj   +1 more source

Attitude Estimation or Quaternion Estimation? [PDF]

open access: yesThe Journal of the Astronautical Sciences, 2004
The absence of a globally nonsingular three-parameter representation of the rotation group forces attitude Kalman filters to estimate either a singular or a redundant attitude representation. We compare two filtering strategies using simplified kinematics and measurement models.
openaire   +1 more source

An Efficient Nonlinear Filter for Spacecraft Attitude Estimation

open access: yesInternational Journal of Aerospace Engineering, 2014
Increasing the computational efficiency of attitude estimation is a critical problem related to modern spacecraft, especially for those with limited computing resources.
Bing Liu   +3 more
doaj   +1 more source

MAGINAV: Long-Term Accurate Navigation Algorithm Using Inertial and Magnetic Field Sensor Fusion

open access: yesIEEE Access, 2023
MAGINAV (MAGnetic Inertial NAVigation) algorithm provides accurate estimation of velocity, attitude and position in long-term. It is utilized in a specialized pedestrian navigation system that consists of a three-axis accelerometer, a three-axis ...
Konstantinos Papafotis   +1 more
doaj   +1 more source

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