A frequency measurement method based on optimal multi-average for increasing proton magnetometer measurement precision

C Tan, J Wang, Z Li - Measurement, 2019 - Elsevier
The measurement precision of proton magnetometers (PM) depends on the measurement
accuracy of low signal-to-noise ratio (SNR) Larmor frequency which output from sensors. In …

Nonlinear compensation method based on data for increasing absolute measurement precision of FID signal

C Tan, L Xin, H Chen, L Yang - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
To increase proton magnetometer (PM) absolute precision, a compensation method is
presented to compensate the nonlinear part of the free induction decay (FID) signal. The …

High-precision frequency measurement approach of diminishing multi-source errors for UAV-based aeromagnetic survey

J Ge, M Wang, X Hu, W Xu, W Luo, K Feng, Y Zhang… - Measurement, 2024 - Elsevier
Compared with crewed aircraft, the optically pumped sensor on the aeromagnetic UAV is
closer to the electromagnetic interference sources, significantly affecting the frequency …

A fusion of principal component analysis and singular value decomposition based multivariate denoising algorithm for free induction decay transversal data

H Liu, H Dong, J Ge, Z Liu, Z Yuan, J Zhu… - Review of Scientific …, 2019 - pubs.aip.org
The free induction decay (FID) transversal data determines the measurement accuracy of
time-dependent geomagnetic fields, whereas the conservation of clean components and …

Towed Overhauser marine magnetometer for weak magnetic anomaly detection in severe ocean conditions

J Ge, W Luo, H Dong, H Liu, H Wang… - Review of Scientific …, 2020 - pubs.aip.org
A towed Overhauser marine geomagnetic magnetometer used for weak magnetic anomaly
detection in severe ocean conditions is studied to investigate means to reduce the negative …

An intelligent full-wavenumber fitting algorithm for proton precession magnetometer frequency measurement

W Luo, J Ge, H Dong, H Liu, J She - IEEE Sensors Journal, 2023 - ieeexplore.ieee.org
For proton precession magnetometers, the influence of free induction decay (FID) signal
noise on the frequency measurement procedure is a significant impediment to improving the …

Characterization and calibration of measurement error associated with attitude drift of a coil vector magnetometer

J Ge, J Qian, W Wen, H Dong, Q Zheng… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In long-term observations, the attitude drift of a coil vector magnetometer caused by
mechanical deformation will directly affect the accuracy of magnetic direction …

Adaptive Multi-Channel Control for Anti-Aliasing in Fiber-Optic Fabry-Perot Vibration Systems

R Li, Z Ma, Q Xi, Z Tian - IEEE Sensors Journal, 2024 - ieeexplore.ieee.org
In order to extend the frequency measurement bandwidth of Fabry-Perot (FP) sensors, solve
the frequency aliasing, and improve the real-time demodulation system, a multichannel …

Design and implementation of a tuning-matching framework for a high-sensitivity broad band proton precession magnetometer sensing coil

H Liu, W Luo, H Dong, J Ge, Z Liu, Z Yuan… - IEEE Sensors …, 2019 - ieeexplore.ieee.org
The proton precession magnetometer (PPM) is always employed for geomagnetic
observation, magnetic anomaly detection, etc., while the tuning performance of the PPM …

Overhauser Sensor Array Based 3-D Magnetic Gradiometer for the Detection of Shallow Subsurface Unexploded Ordnance

H Wang, T Meng, W Luo, R Yang, H Liu… - IEEE Transactions …, 2023 - ieeexplore.ieee.org
The information on the high-precision and multidirectional magnetic gradient is highly
relevant to detecting and locating shallow subsurface unexploded ordnance (UXO). In this …