Uwb-based adaptable side-by-side following for human-following robots

G Xue, H Yao, Y Zhang, J Huang… - … on Robotics and …, 2022 - ieeexplore.ieee.org
Compared with a mobile robot follows behind the target person, side-by-side following is a
more common, relaxed, and friendly human-robot interaction (HRI). However, when the …

Variational-based nonlinear Bayesian filtering with biased observations

AH Chughtai, A Majal, M Tahir… - IEEE Transactions on …, 2022 - ieeexplore.ieee.org
State estimation of dynamical systems is crucial for providing new decision-making and
system automation information in different applications. However, the assumptions on the …

Outlier-robust filtering for nonlinear systems with selective observations rejection

AH Chughtai, M Tahir, M Uppal - IEEE Sensors Journal, 2022 - ieeexplore.ieee.org
Considering a common case where measurements are obtained from independent sensors,
we present a novel outlier-robust filter for nonlinear dynamical systems in this work. The …

Adaptive imaging of sound source based on total variation prior and a subspace iteration integrated variational Bayesian method

L Yu, Z Gong, N Chu, Y Ning… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
Sound source visualization has been widely used in many scenarios such as aerospace,
industrial production, and urban management. Sound source localization technology plays …

Outlier-Robust Unscented RTS Smoothing for Independent Sensing Data

A Majal, AH Chughtai - IEEE Sensors Letters, 2024 - ieeexplore.ieee.org
In this letter, we propose a version of the unscented Rauch–Tung–Striebel (RTS) smoother
robust to outliers in the observations. We consider a common case where data are collected …

Variational Bias Classification and Mitigation Filter for Robust Localization Based on Cellular Signals

F Li, T **, H Qin - IEEE Transactions on Vehicular Technology, 2025 - ieeexplore.ieee.org
Cellular signals have become a promising candidate for localization due to advantages
such as broad coverage and high signal quality, especially in dense urban environments …

A novel robust Kalman filtering approach based on time-dependent structure

Q Wu, Y Li, Z Wang, L An, F Yu… - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
In this article, we consider the Kalman filtering problem in the presence of non-Gaussian
measurement noise contaminated by time-correlated outliers. A novel robust filtering …

A Robust Kalman Filter Based on the Pearson Type VII-Inverse Wishart Distribution: Symmetrical Treatment of Time-Varying Measurement Bias and Heavy-Tailed …

S Liang, X Zhang - Symmetry (20738994), 2025 - search.ebscohost.com
This paper introduces a novel robust Kalman filter designed to leverage symmetrical
properties within the Pearson Type VII-Inverse Wishart (PVIW) distribution, enhancing state …

EMORF/S: EM-Based Outlier-Robust Filtering and Smoothing With Correlated Measurement Noise

AH Chughtai, M Tahir, M Uppal - IEEE Transactions on Signal …, 2024 - ieeexplore.ieee.org
In this article, we consider the problem of outlier-robust state estimation where the
measurement noise can be correlated. Outliers in data arise due to many reasons like …

A variational Bayesian based robust filter for unknown measurement bias and inaccurate noise statistics

S Yang, H Fu, X Zhang - Journal of Instrumentation, 2024 - iopscience.iop.org
In many practical fields, the unknown time-varying measurement biases (additive and
multiplicative bias) and heavy-tailed measurement noise caused by some unpredictable …