PMID- 33514244
OWN - NLM
STAT- PubMed-not-MEDLINE
LR  - 20210201
IS  - 1089-7623 (Electronic)
IS  - 0034-6748 (Linking)
VI  - 92
IP  - 1
DP  - 2021 Jan 1
TI  - Systematic calibration method based on acceleration and angular rate measurements 
      for fiber-optic gyro SINS.
PG  - 015001
LID - 10.1063/5.0023674 [doi]
AB  - A simple systematic calibration method based on acceleration and angular rate 
      measurements is introduced for the fiber-optic gyro strapdown inertial navigation 
      system in this paper. Meanwhile, a unified mathematical framework and an 
      iterative calculation method are designed for the systematic calibration method. 
      Using this method, one can estimate the fiber-optic gyro inertial measurement 
      unit (FOG IMU) parameters both at a manufacturer's facility and in the field. In 
      order to get all FOG IMU parameters, a procedure adopted based on this approach 
      consists of two stages: First, FOG IMU raw data (accelerometer and gyro readouts) 
      are accumulated in 19 specified FOG IMU positions. Second, the accumulated data 
      are processed by special software to estimate all FOG IMU parameters. In 
      addition, observability analysis of the method in 19 specified FOG IMU positions 
      is done without the limitation of FOG IMU's initial orientation, and this 
      analysis provides theoretical support for the application in a complex terrain. 
      Moreover, the influence of gravity disturbance is analyzed for the first time. 
      The analysis and experiment results show that the systematic calibration method 
      provided by this work can meet the requirement of FOG IMU calibration.
FAU - Wang, Pingping
AU  - Wang P
AD  - 365 Institute, Northwest Polytechnic University, Xian 710065, China.
FAU - Lu, Baofeng
AU  - Lu B
AUID- ORCID: 0000000309926670
AD  - No.203 Research Institute of China Ordnance Industries, Xian 710065, China.
FAU - Yang, Pengxiang
AU  - Yang P
AD  - No.203 Research Institute of China Ordnance Industries, Xian 710065, China.
FAU - Chen, Feng
AU  - Chen F
AD  - No.203 Research Institute of China Ordnance Industries, Xian 710065, China.
LA  - eng
PT  - Journal Article
PL  - United States
TA  - Rev Sci Instrum
JT  - The Review of scientific instruments
JID - 0405571
SB  - IM
EDAT- 2021/01/31 06:00
MHDA- 2021/01/31 06:01
CRDT- 2021/01/30 05:22
PHST- 2021/01/30 05:22 [entrez]
PHST- 2021/01/31 06:00 [pubmed]
PHST- 2021/01/31 06:01 [medline]
AID - 10.1063/5.0023674 [doi]
PST - ppublish
SO  - Rev Sci Instrum. 2021 Jan 1;92(1):015001. doi: 10.1063/5.0023674.