Hi/H∞-optimised fault detection for a surface vessel integrated navigation system

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2022-03-25 DOI:10.1017/S0373463322000078

Muzhuang Guo, Chen Guo, Chuang Zhang

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引用次数: 1

Abstract

Abstract Strapdown inertial navigation systems are widely used in surface ships and warships. Although high-precision optical fibre inertial navigation systems are available, they have high cost and limited practicality. Therefore, they cannot replace the traditional platform inertial navigation systems in all ships. Hence, microelectromechanical system (MEMS)-based inertial sensors are widely used for robust navigation. Accurate and timely identification of sensor faults while ensuring stable navigation is a challenging task. This paper proposes a robust fault detection (FD) approach for a low-cost system that loosely integrates a strapdown inertial navigation system and the global navigation satellite system, where the integrated navigation state estimation provides high-accuracy output. A cubature Hi/H∞-optimised FD filter was designed for a nonlinear discrete time-varying system considering sensitivity to faults and robustness to disturbances. Furthermore, a threshold for FD was derived considering a compromise between the false alarm rate and fault diagnosis accuracy. Finally, the proposed method was validated through simulations using multiple noise distribution sensor data generated by a ship-manoeuvring simulator.

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水面舰艇综合导航系统的Hi/H∞优化故障检测

捷联惯性导航系统广泛应用于水面舰艇和军舰。目前已有高精度光纤惯性导航系统，但其成本高，实用性有限。因此，它们不能在所有舰船上取代传统的平台惯性导航系统。因此，基于微机电系统(MEMS)的惯性传感器被广泛用于鲁棒导航。在保证导航稳定的同时，准确及时地识别传感器故障是一项具有挑战性的任务。针对捷联惯性导航系统与全球卫星导航系统松散集成的低成本系统，提出了一种鲁棒故障检测方法，该方法可提供高精度的组合导航状态估计输出。针对非线性离散时变系统，考虑故障敏感性和扰动鲁棒性，设计了一种恒压Hi/H∞优化FD滤波器。在此基础上，考虑了虚警率与故障诊断准确率之间的折衷，导出了故障诊断的阈值。最后，利用船舶操纵模拟器产生的多个噪声分布传感器数据进行仿真，验证了所提方法的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.