Polar Transversal Initial Alignment Algorithm for UUV with a Large Misalignment Angle [PDF]
Sensors, 2018 The conventional initial alignment algorithms are invalid in the polar region. This is caused by the rapid convergence of the Earth meridians in the high-latitude areas.
Zheping Yan +4 more
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Strong tracking dimensionality-reduction CKF algorithm for SINS initial alignment under large misalignment angle [PDF]
Scientific ReportsInitial alignment is the prerequisite and foundation for the normal operation of the Strapdown Inertial Navigation System (SINS). Kalman filtering and various evolution algorithms are commonly employed tools for achieving initial alignment.
Yong Yang +3 more
doaj +6 more sources
Fine Alignment Algorithm for UUVs With a Large Misalignment Angle [PDF]
IEEE Access, 2019 In order to overcome the problem that the conventional algorithms cannot be applied in the polar region, a polar initial alignment algorithm for Unmanned Underwater Vehicles (UUVs) with a large misalignment angle is proposed in this paper.
Zheping Yan +4 more
doaj +3 more sources
An Improved Inertial Matching Algorithm for Hull Deformation With Large Misalignment Angle [PDF]
IEEE Access, 2021 Inertial matching measurement method has been widely used to measure hull deformation in real time to establish a unified attitude reference for ships in previous decades, but most current methods were based on linear error model which adopted small ...
Dongsheng Xu +4 more
doaj +3 more sources
Initial Alignment of Large Azimuth Misalignment Angles in SINS Based on Adaptive UPF [PDF]
Sensors, 2015 The case of large azimuth misalignment angles in a strapdown inertial navigation system (SINS) is analyzed, and a method of using the adaptive UPF for the initial alignment is proposed. The filter is based on the idea of a strong tracking filter; through
Jin Sun +4 more
doaj +5 more sources
Odometer Aided SINS in-Motion Alignment Method Based on Backtracking Scheme for Large Misalignment Angles [PDF]
IEEE Access, 2020 In-motion alignment of Strapdown Inertial Navigation Systems (SINS) without any geodetic-frame observations is one of the toughest challenges for odometer aided navigation system.
Zeyang Wen +3 more
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A Novel Alignment Method for SINS with Large Misalignment Angles Based on EKF2 and AFIS [PDF]
Sensors, 2020 In order to achieve the fine alignment of strapdown inertial navigation (SINS) under large misalignment angles, a novel filtering alignment method is proposed based on the second-order extended Kalman filter (EKF2) and adaptive fuzzy inference system ...
Yanming Zhao +3 more
doaj +5 more sources
Initial Alignment Algorithm Based on the DMCS Method in Single-Axis RSINS with Large Azimuth Misalignment Angles for Submarines [PDF]
Sensors, 2018 Since the inertial sensor error has been modulated effectively by the Rotation Modulation Technique (RMT), the Rotation Strapdown Inertial Navigation System (RSINS) has been widely used for submarines in order to satisfy the requirement of high-accuracy ...
Xiu-Wei Xia, Qian Sun
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Application of Improved 5th-Cubature Kalman Filter in Initial Strapdown Inertial Navigation System Alignment for Large Misalignment Angles [PDF]
Sensors, 2018 In view of the fact the accuracy of the third-degree Cubature Kalman Filter (CKF) used for initial alignment under large misalignment angle conditions is insufficient, an improved fifth-degree CKF algorithm is proposed in this paper.
Wei Wang, Xiyuan Chen
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Initial Alignment of Large Azimuth Misalignment Angle in SINS based on Reduced Multiple Fading Factors Strong Tracking CKF [PDF]
MATEC Web of Conferences, 2018 Aiming at the problem that Cubature Kalman Filter(CKF) has low accuracy and robustness under the condition of strapdown inertial navigation system(SINS) initial alignment due to model error and external disturbance, Reduced Multiple Strong Tracking ...
Lu Hang +3 more
doaj +3 more sources