Results 51 to 60 of about 858 (174)
A Combined Navigation Fault Detection Method Based on Wavelet‐ResNet
Electronics Letters, Volume 61, Issue 1, January/December 2025.A combined navigation dataset, using wavelet transform is constructed and a residual network structure is trained for fault detection. The results show that this method can effectively improve the training efficiency and the accuracy of slowly varying faults.
Yunhua Liu +3 more
wiley +1 more source
Fault Detection and Isolation for Redundant Inertial Measurement Unit under Quantization
Applied Sciences, 2018 Fault detection and isolation with redundant strapdown inertial measurement unit is critical for ensuring the reliability of the guidance or navigation system in the fields of both aeronautics and astronautics.
Tong Zhang, Fenfen Wang, Wenxing Fu
doaj +1 more source
Linear Track Underwater Carrier SINS Correction Method Based on Hydroacoustic Single Beacon
IEEE Access, 2022 Precise positioning of underwater vehicles using only a single beacon for range measurement is one of the toughest challenges for underwater navigation, especially when the underwater vehicle travels along a straight path resulting in the system ...
Enfan Lin +4 more
doaj +1 more source
A Student's T Distribution‐Based Filter Design for SINS/GNSS With Heavy‐Tailed Noise
IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.To reduce the affection of outliers caused by heavy‐tailed noise, the noise model is constructed by the Student's T distribution rather than the Gaussian distribution, and the related probability density functions (PDF) are adaptively modelled as student's T PDFs with different DoF parameters.
Menghao Qian, Wei Chen, Ruisheng Sun
wiley +1 more source
An Improve Hybrid Calibration Scheme for Strapdown Inertial Navigation System [PDF]
IEEE Access, 2019 This paper develops an improved hybrid calibration scheme for the strapdown inertial navigation system (SINS) that combines the advantages of an optimal rotational norm calibration method and an improved system-level calibration method. To accurately determine the scale factors and misalignment error of gyros triad, the optimal rotation norm ...
Suier Wang, Gongliu Yang, Lifen Wang
openaire +2 more sources
IET Radar, Sonar &Navigation, Volume 19, Issue 1, January/December 2025.This work explores underwater TMA by incorporating time delay and Doppler frequency measurements along with angle data, eliminating the need for own‐ship manoeuvre and improving estimation accuracy in presence of non‐Gaussian sensor noise. Furthermore, since the own‐ship's position is inherently uncertain due to navigation errors, this work addresses ...
Rohit Kumar Singh +2 more
wiley +1 more source
Multiframe Target Localization With Strapdown Seeker Based on Self‐Adaptive L‐SHADE
International Journal of Aerospace Engineering, Volume 2025, Issue 1, 2025.Strapdown seekers are increasingly used in the terminal guidance for the advantages of small size and low cost. However, due to the coupling of the seeker with the missile and its limited field of view, there is a risk of losing the target. This paper proposes a multiframe fusion target localization method for missiles with strapdown seekers, which can
Jiayang Wu +5 more
wiley +1 more source
Advanced Intelligent Systems, Volume 6, Issue 12, December 2024.In this work, SmokeNav, a system that fuses inertial sensor and millimeter‐wave radar for accurate user localization and metric map reconstruction in visually degraded environments, is presented. Using a foot‐mounted inertial sensor with human motion constraints, SmokeNav leverages inertial positioning to construct occupancy maps from radar data.
Changhao Chen +6 more
wiley +1 more source
A Robust Self-Alignment Method for Ship’s Strapdown INS Under Mooring Conditions
Sensors, 2013 Strapdown inertial navigation systems (INS) need an alignment process to determine the initial attitude matrix between the body frame and the navigation frame. The conventional alignment process is to compute the initial attitude matrix using the gravity
Tong Cao +6 more
doaj +1 more source
IET Science, Measurement &Technology, Volume 18, Issue 9, Page 524-539, November 2024.The proposed algorithm VBRAUKF is useful for dynamic alignment of SINS/DVL. According to the inaccurate modelling of the observation model, an adaptive estimation strategy for the measurement noise covariance is designed by Variational Bayesian algorithm based on unscented Kalman filter algorithm to solve dynamic attitude alignment for SINS/DVL ...
Bing Zhu +5 more
wiley +1 more source