Results 211 to 220 of about 35,737 (253)
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Minimum Model Error Approach for Attitude Estimation
Journal of Guidance, Control, and Dynamics, 1995Summary: An optimal batch estimator and smoother based on the minimum model error (MME) approach is developed for a three-axis stabilized spacecraft. The formulation is shown using only attitude sensors, e.g., three-axis magnetometers, sun sensors, star trackers.
Crassidis, John L., Markley, F. Landis
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Deterministic EKF-like estimator for spacecraft attitude estimation
Proceedings of 1994 American Control Conference - ACC '94, 2005A filter for estimating spacecraft attitude quaternion and gyro drift bias vector is developed. The point of view taken in this paper is deterministic in that the underlying system and the measurement process are assumed to be both deterministic, while the uncertainties considered are assumed to be unmeasurable deterministic functions of time.
F.L. Markley, N. Berman, U. Shaked
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SCKF for MAV attitude estimation
2011 International Conference on Machine Learning and Cybernetics, 2011In this paper, a novel quaternion-based attitude estimation algorithm with the square-root cubature Kalman filter (SCKF) is proposed to improve the attitude estimation performance for micro air vehicle (MAV). The SCKF is a kind of new effective method to solve nonlinear state estimation, it can directly deal with nonlinear systems, and the QR ...
Chao Li, Quan-Bo Ge
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Attitude estimation using moment invariants
Pattern Recognition Letters, 1993The problem of estimating the three-dimensional rotational parameters of a rigid body from its monocular image data has been considered using the method of moment invariants. Second- and third-order moment invariants are used to construct the feature vector for the scale and orientation independent identification of the camera view axis direction in ...
Mukundan, R, Malik, NK, Ramakrishnan, KR
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Attitude Estimation with Complementary Filter
Applied Mechanics and Materials, 2010An attitude estimation method is presented for a robot using low-cost solid-state inertial sensors. The attitude estimates are obtained from a complementary filter by combining the measurements from the integration of a tri-axis gyro and an aiding system mechanized using a tri-axis accelerometer and a tri-axis magnetometer.
Rui Hua Chang +2 more
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Attitude estimation with intermittent measurements
Automatica, 2019zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Berkane, Soulaimane, Tayebi, Abdelhamid
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Optimal estimation of ship's attitudes and attitude rates
IEEE Journal of Oceanic Engineering, 1979Estimation of ship rotational motions induced by ocean waves plays a central role in many navigation and fire control applications. Inertial-type instruments are available which give good measurements of the attitude, but some form of signal processing is necessary to obtain angular rates or predict attitudes.
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Descriptor Approach for Attitude Estimation
2015 IEEE Conference on Control Applications (CCA), 2015In this paper, a new modeling and filtering approachfor rigid body attitude estimation is investigated. Incontrast to the current state-of-the art where the process modelisdrivenbygyroscope measurements, weproposeanalternativemodeling formulation where the process model is fed by themagnetometer measurements. The resulting dynamic modeltakes the form of
Makni, Aida +2 more
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Steepest descent quaternion attitude estimator
Aerospace Science and Technology, 2018Abstract A new computationally inexpensive attitude determination algorithm based on the minimization of Wahba's loss function is presented in the paper. The estimation problem is converted into quaternion representation and solved with iterative prediction–correction scheme.
Pawel Zagorski +2 more
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Subjective Estimate Approach to Scaling Attitude Statements
Perceptual and Motor Skills, 1966Statements expressing attitudes toward labor unions were scaled by two groups of judges. One group of 54 5s used a subjective estimate procedure which presented stimuli in pairs and S expressed his judgment by regulating his rate of tapping a telegraph key.
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