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5 November 2020 An adaptive internal model controller for estimating the parameter of the free-induction-decay signal in nuclear magnetic resonance gyroscope
Xinghua Zhao, Guanqun Lei, Zhanchao Liu, Binquan Zhou
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Proceedings Volume 11564, AOPC 2020: Optoelectronics and Nanophotonics; and Quantum Information Technology; 115640O (2020) https://doi.org/10.1117/12.2579958
Event: Applied Optics and Photonics China (AOPC 2020), 2020, Beijing, China
Abstract
Measuring the transverse relaxation time of noble gas nuclei with the Free-induction-decay (FID) signal is one of the key technical challenges and prerequisites for the nuclear magnetic resonance gyroscope (NMRG), which is a quantum sensor to form an inertial navigation system. In this paper, a novel method to estimate the parameter of the freeinduction-decay signal based on the adaptive internal model (AIM) controller is proposed and it is verified by the free induction decay data collected from the gyro prototype. In the proposed methods, the AIM con troller can provide estimates of the FID signal, such as the amplitude, the frequency, and the relaxation time. The feasibility of the scheme is proven by theoretical analysis and the reliability of the method is verified by the test results.
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Xinghua Zhao, Guanqun Lei, Zhanchao Liu, and Binquan Zhou "An adaptive internal model controller for estimating the parameter of the free-induction-decay signal in nuclear magnetic resonance gyroscope", Proc. SPIE 11564, AOPC 2020: Optoelectronics and Nanophotonics; and Quantum Information Technology, 115640O (5 November 2020); https://doi.org/10.1117/12.2579958
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KEYWORDS
Xenon
Gyroscopes
Noble gases
Data processing
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