A Multipurpose Consider Covariance Analysis for Square-Root Information Filters [PDF]
A new form of consider covariance analysis suitable for application to square-root information lters with a wide variety of model errors is presented and demonstrated. A special system formulation is employed, and the analysis draws on the algorithms of square-root information ltering to provide generality and compactness.
Joanna Hinks, Mark Psiaki
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Score Evaluation Within the Extended Square-Root Information Filter [PDF]
A newly developed algorithm for evaluating the Log Likelihood Gradient (score) of linear discrete-time dynamic systems is presented, based on the extended Square-Root Information Filter (eSRIF). The new result can be used for efficient calculations in gradient-search algorithms for maximum likelihood estimation of the unknown system parameters.
Maria V. Kulikova +1 more
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A review of real-time multi-GNSS precise orbit determination based on the filter method
Stable and reliable high-precision satellite orbit products are the prerequisites for the positioning services with high performance. In general, the positioning accuracy depends strongly on the quality of satellite orbit and clock products, especially ...
Yidong Lou +7 more
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A parallel Kalman filter via the square root Kalman filtering [PDF]
A parallel algorithm for Kalman filtering with contaminated observations is developed. Theı parallel implementation is based on the square root version of the Kalman filter (see [3]).
Romera, Rosario, Cipra, Tomas
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An improved approach for rapid filter convergence of GNSS satellite real-time orbit determination
Introduction: The real-time precise satellite orbit of Global Navigation Satellite System (GNSS) usually takes a long time to converge to a stable state using the filter method.
Liqin Zhou +8 more
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Ship trajectory tracking based on IMM-SCKF algorithm
Objectives Aiming at the unstable error of the extended Kalman filter (EKF) and the limited representation ability of a single motion model in a scenario involving complex changes of a ship's motion state, a ship trajectory tracking algorithm based on an
Jiaxuan YANG, Baiguo CHEN, Lingqi MA
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Square root kalman filter with contaminated observations [PDF]
The algorithm of square root Kalman filtering for the case of contaminated observations is described in the paper. This algorithm is suitable for the parallel computer implementation allowing to treat dynamic linear systems with large number of state ...
Rubio, A., Romera, Rosario, Cipra, Tomas
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Implementation of a Low- Cost Multi- IMU by Using Information Form of a Steady State Kalman Filter [PDF]
In this paper, a homogenous multi-sensor fusion method is used to estimate the trueangular rate and acceleration with a combination of four low cost (< 10$) MEMS Inertial MeasurementUnits (IMU).
A. M. Shahri, R. Rasoulzadeh
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A LiDAR SLAM-Assisted Fusion Positioning Method for USVs
Confronted with unmanned surface vessel (USV) operations where GNSS signals are unavailable due to obscuration and other factors, a LiDAR SLAM-assisted fusion positioning method for USVs is proposed to combine GNSS/INS positioning with LiDAR-SLAM.
Wei Shen +3 more
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Improved Adaptive Federated Kalman Filtering for INS/GNSS/VNS Integrated Navigation Algorithm
To address the issue of low positioning accuracy in unmanned vehicles navigating in obstructed spaces due to easily contaminated navigation measurement information, an improved adaptive federated Kalman filtering INS/GNSS/VNS integrated navigation ...
Xuejia Wu, Zhong Su, Lei Li, Zekun Bai
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