Results 51 to 60 of about 977 (177)
Sensors, 2022 Strapdown inertial navigation system (SINS) software developers are usually mainly focused on the attitude determination algorithm design and characteristics. Such an algorithm can be based on different mathematical apparatus.
Maksim Zharkov +3 more
doaj +1 more source
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
IMU and GNSS Postprocessing for High-Resolution Strapdown Airborne Gravimetry
Engineering Proceedings, 2023 Strapdown airborne gravimeters based on a navigation-grade inertial measurement unit (IMU) are highly sensitive to perturbations during aircraft flight, especially in the case of flights in draped mode (at a constant altitude above the terrain) or drone ...
Vadim Vyazmin, Andrey Golovan
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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
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
Optimal Look-Angle Guidance with Field-of-View and Impact Angle Constraints for Strapdown Munition
International Journal of Aerospace Engineering, 2022 A strapdown seeker with limited field-of-view (FOV) can simplify and decrease cost of the guidance system for a munition. However, the inherent defect of the strapdown seeker is that it could not provide the necessary line-of-sight (LOS) angular ...
Peng Wang +4 more
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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
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
Atom Strapdown: Toward Integrated Quantum Inertial Navigation Systems
Navigation, 2023 We present an alternative technique for estimating the response of a cold atom interferometer (CAI). Using data from a conventional inertial measurement unit (IMU) and common strapdown terminology, the position of the atom wave packet is tracked in a ...
Benjamin Tennstedt +5 more
doaj +1 more source