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Challenges and Future Trends of Inertial Sensors

A special issue of Sensors (ISSN 1424-8220). This special issue belongs to the section "Physical Sensors".

Deadline for manuscript submissions: 1 August 2024 | Viewed by 1066

Special Issue Editor


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Guest Editor
School of Automation, Northwestern Polytechnical University, Xi'an 710072, China
Interests: error modeling and testing of inertial devices and calibration of strapdown inertial navigation system; transfer alignment technology of inertial navigation system and initial alignment technology of moving base; inertial based vehicle autonomous positioning and orientation technology; theory and application of high precision integrated navigation and information fusion; autonomous driving technology; robot autonomous navigation technology
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Special Issue Information

Dear Colleagues,

Inertial sensors are used in many military and civilian fields, ranging from smartphone to spacecraft. The autonomous, covert, global positioning characteristics make the inertial sensors are irreplaceable. However, as the development of new gyroscope technology, new mathematic model of navigation system, machine learning techniques, and computer vision, the conventional inertial sensors technology faces many challenges. And many new positioning requirements and sensors’ data fusion methods should be paid much attention and studied.

Some of the challenges include temperature sensitivity, noise, bias instability, and drift. To overcome these challenges, researchers are exploring new technologies such as micro-electromechanical systems (MEMS), fiber-optic gyroscopes, and quantum sensors. These technologies have the potential to improve the performance of inertial sensors and enable new applications.

The conventional inertial-based navigation system structure may not be proper for the future complex multi-source system. New algorithm and technology offer possibility to solve problems unsolvable by traditional inertial sensor technology. Meanwhile, the faced challenges also point out the future trends. For example, development of visual navigation supply new positioning reference information for 6 degrees of freedom. Deep learning can establish the complex model of inertial sensor and visual sensor. Autonomous driving enhanced inertial sensor precision positioning requirements for GNSS rejection conditions.

In the future, the inertial sensor needs to combine with other new technology to realize autonomy, intelligence, integration, high precision and high adaptability. Especially, deeply integrate inertial sensor with visual sensor to decrease cumulative error and improve stability of visual localization, and use deep learning to compensate the inertial sensors’ error.

Dr. Gongmin Yan
Guest Editor

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Keywords

  • advanced measurement and error compensation
  • information fusion of isomorphic and isomeric
  • micro-opto-electro-mechanical-systems (MOEMS) inertial sensors
  • hemispherical resonator gyroscope technology
  • long-time and high-accuracy inertial navigation
  • high-dynamic and high-impact inertial navigation
  • deep learning used in inertial sensor modelling
  • deep learning used in information fusion

Published Papers (1 paper)

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Research

17 pages, 3813 KiB  
Article
Design of a Multi-Position Alignment Scheme
by Bofan Guan, Zhongping Liu, Dong Wei and Qiangwen Fu
Sensors 2024, 24(6), 1938; https://doi.org/10.3390/s24061938 - 18 Mar 2024
Viewed by 382
Abstract
The current new type of inertial navigation system, including rotating inertial navigation systems and three-autonomy inertial navigation systems, has been increasingly widely applied. Benefited by the rotating mechanisms of these inertial navigation systems, alignment accuracy can be significantly enhanced by implementing IMU (Inertial [...] Read more.
The current new type of inertial navigation system, including rotating inertial navigation systems and three-autonomy inertial navigation systems, has been increasingly widely applied. Benefited by the rotating mechanisms of these inertial navigation systems, alignment accuracy can be significantly enhanced by implementing IMU (Inertial Measurement Unit) rotation during the alignment process. The principle of suppressing initial alignment errors using rotational modulation technology was investigated, and the impact of various component error terms on alignment accuracy of IMU during rotation was analyzed. A corresponding error suppression scheme was designed to overcome the shortcoming of the significant scale factor error of fiber optic gyroscopes, and the research content of this paper is validated through corresponding simulations and experiments. The results indicate that the designed alignment scheme can effectively suppress the gyro scale factor error introduced by angular motion and improve alignment accuracy. Full article
(This article belongs to the Special Issue Challenges and Future Trends of Inertial Sensors)
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