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Sensors 2019, 19(2), 222; https://doi.org/10.3390/s19020222

A Novel Monitoring Navigation Method for Cold Atom Interference Gyroscope

1,* , 1
,
1,2,* , 3
,
3
and
3
1
Institute of Navigation Instrument, Harbin Institute of Technology, Harbin 150001, China
2
College of Automation, Harbin Engineering University, Harbin 150001, China
3
State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics and Mathematics, Chinese Academy of Sciences, Wuhan 430071, China
*
Authors to whom correspondence should be addressed.
Received: 29 November 2018 / Revised: 3 January 2019 / Accepted: 4 January 2019 / Published: 9 January 2019
(This article belongs to the Special Issue Inertial Sensors and Systems 2018)
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Abstract

The implementation principle of a typical three-pulse cold atom interference gyroscope is introduced in this paper. Based on its configuration and current research status, the problems of cold atom interference gyro are pointed out. The data-rate is insufficient, and it is difficult to achieve high dynamic measurement. Then, based on these two limitations, a novel design of the monitoring navigation system of the cold atom interference gyroscope (CAIG) and an intermediate-grade inertial measurement unit (IMU) was proposed to obtain the long-term position result without GPS signals, such as the Inertial Navigation System (INS) in underwater vehicles. While the CAIG was used as the external gyro, the bias of IMU and the misalignment angle between the CAIG-frame and the IMU-frame are obtained through filtering technique. The simulation test and field test demonstrated the improvements of the long-term positioning accuracy of the INS. View Full-Text
Keywords: cold atom interference gyroscope; Kalman filtering; monitoring navigation system cold atom interference gyroscope; Kalman filtering; monitoring navigation system
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Zhang, L.; Gao, W.; Li, Q.; Li, R.; Yao, Z.; Lu, S. A Novel Monitoring Navigation Method for Cold Atom Interference Gyroscope. Sensors 2019, 19, 222.

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