A Self-Alignment Method of MEMS Biaxial Rotation Modulation Strapdown Compass for Marine Applications

Huang, Wenyan; Li, Meng Hao

doi:10.1109/access.2019.2948230

Cited by 4 publications

(3 citation statements)

References 23 publications

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“…The aforementioned techniques, however, are ineffective for selfalignment. The orientation approach provided in the paper [19] is superior to the method suggested in study [25] since it may be used for self-alignment on the pendulum platform without use of magnetometers in any weather conditions. Inertial synchronization and analytical coarser synchronization [26,27] are the two most often utilized self-alignment techniques in rising SINS systems.…”

Section: Related Workmentioning

confidence: 99%

“…Second, the proposed approach is enhanced by assessing the influence of biaxial rotation modulation, exceeding the speed limit up the rotation and decreasing the problem based on the beam pivot framework to reduce the early adjustment time, effectively suppressing the influence of MEMS noise over the preliminary adjustment fault angle. Analyzed as well is the impact of vessel swaying just on original alignment error angle [19]. Experimentation on a pendulum base is used to demonstrate the method's effectiveness [18].…”

Section: Related Workmentioning

confidence: 99%

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Optimal Stabilization Of Ship Movement By Feedback Control : A Review

2023

IRJMETS

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Among the utmost important and sophisticated concepts pertaining to ship safety and navigational safety, which is governed by legal statutes and regulations of maritime is the stability of ship. The stability of a ship, safety practices for both ships and navigation are constantly correlated. A loss of ship stability jeopardizes the safety of navigation. The reasons for numerous ship balance casualties in adverse weather circumstances will be examined, and potential avenues for stability failures will be evaluated. A ship cannot always be regarded as seaworthy if it is in an unstable state. The loss of stability is a significant factor in maritime accidents that have a significant effect and pose a serious threat to the safety of navigation. Hence, it is clear that complete stability of ship and navigational safety are related.This paper provides an overview of different methodologies and technologies employed for ship stabilization. It explores different approaches to ship stabilization, including the utilization of ballast systems, active control systems, and advanced sensor technologies. It discusses the challenges faced in achieving optimal stabilization and presents innovative solutions developed to address these challenges. Additionally, it highlights the importance of considering factors such as environmental conditions when implementing stabilization systems. Furthermore, the paper discusses the impact of ship stabilization on safety, comfort, and operational efficiency

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Section: Related Workmentioning

confidence: 99%

Section: Related Workmentioning

confidence: 99%

Optimal Stabilization Of Ship Movement By Feedback Control : A Review

2023

IRJMETS

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“…As the main sensor in the LASC system, the gyroscope was developed over a period of more than 170 years, and its accuracy means that it is difficult to achieve a big breakthrough [11,12]. As an error self-compensation method of INS, the essence of rotary modulation is to generate periodic attitude matrix changes through an external turning mechanism without improving the hardware level of the inertial sensor, thereby achieving self-compensation of the deterministic error of the inertial sensor [13,14] and improving the system accuracy for the long voyage. Scholars have been researching rotary navigation systems since the 1980s.…”

Section: Introductionmentioning

confidence: 99%

Simulation Optimization and Application of Shearer Strapdown Inertial Navigation System Modulation Scheme

Fang

Yang

et al. 2023

Sensors

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The operating attitude of a shearer based on a three-dimensional (3D) space scale is the necessary basic information for realizing intelligent mining. Aiming to address the problem of the insufficient perception accuracy of shearers, in this paper, the rotation model of the actual turning mechanism of the strapdown inertial navigation system (SINS) of shearers is established, and the error propagation characteristics of different single-axis rotation modulation schemes are revealed. Through theory and simulation, the optimal rotation modulation scheme is determined to be the improved four-position turn–stop modulation with a rotation of <360°. The experiment shows that the 24 h positioning error of this scheme is 3.7 nmile, and the heading angle changes by 0.06°, which proves that this scheme can effectively improve the attitude perception accuracy of the inertial navigation system (INS). The field application of the shearer operating attitude perception based on this scheme shows that the positioning error after error compensation is 17% of that before compensation, and the heading angle error is 75% of that before compensation, which verifies that this scheme can significantly improve the accuracy of shearer operating attitude perception in field applications. This scheme can achieve higher precision perception accuracy based on SINS and has broad application prospects in the field of high-precision pose perception of coal mining machines, roadheaders, and other equipment.

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Gradient Descent Optimization-Based SINS Self-Alignment Method and Error Analysis

Chang

Zhang

2021

IEEE Access

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In this paper, the self-alignment for stationary strapdown inertial navigation system (SINS) is formulated as an optimization problem, and two gradient descent optimization-based SINS self-alignment methods (GD1 and GD2) are proposed. The highlight lies in that two quaternion-based objective functions are firstly formulated to solve the stationary SINS self-alignment problem. Different from conventional initial alignment methods, we firstly construct a quaternion-based objective function for stationary SINS using gravity, Earth rate and local latitude information in GD1, and employs gradient descent method to achieve the minimum of the objective function. Secondly, we further improve the quaternion-based objective function in GD2 by using the measurements from IMU to represent the Earth rate instead of using the local latitude directly. Thus, GD2 method is more competent for SINS self-alignment when the local latitude information is not available. In addition, we also analyze the bias errors of accelerometer and gyroscope and the quaternion normality error for GD1 and GD2 method respectively. Moreover, based on the analysis results, a scale factor is also introduced to reduce the alignment errors of GD1 caused by gyroscope biases. Simulation and static experiment are implemented to test the performances of GD1 and GD2 method, and the results verify the accuracy and speed of the proposed methods.

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A Self-Alignment Method of MEMS Biaxial Rotation Modulation Strapdown Compass for Marine Applications

Cited by 4 publications

References 23 publications

Optimal Stabilization Of Ship Movement By Feedback Control : A Review

Optimal Stabilization Of Ship Movement By Feedback Control : A Review

Simulation Optimization and Application of Shearer Strapdown Inertial Navigation System Modulation Scheme

Gradient Descent Optimization-Based SINS Self-Alignment Method and Error Analysis

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