Infrared and Laser Engineering, Volume. 52, Issue 6, 20230174(2023)
Strapdown vehicle autonomous gravimetry method based on two-dimensional laser Doppler velocimeter
Figures & Tables(14)
Fig. 10. Gravity anomaly measurement results of the integration of SINS/LDV
Fig. 11. Gravity anomaly measurement results of the integration of SINS/GNSS
Table 1. System index
View tableView in ArticleTable 1. System index
Index Accuracy Velocity measurement accuracy of LDV ≤1‰ Calculation accuracy of acceleration/mGal ≤1 Measurement time of single line/h ≤1.7 Horizontal accuracy/m ≤10 Height accuracy/m ≤3
Table 2. Internal coincidence accuracy of SINS/LDV integrated gravimetry system
View tableView in ArticleTable 2. Internal coincidence accuracy of SINS/LDV integrated gravimetry system
Maximum Minimum RMS of single line RMS of total line Internal coincidence accuracy/ mGal Line 1 1.08 −1.46 0.73 0.70 Line 2 0.98 −1.00 0.47 Line 3 1.18 −2.47 0.66 Line 4 2.37 −1.78 1.05 Line 5 0.83 −1.24 0.53 Line 6 1.26 −1.04 0.59
Table 3. Internal coincidence accuracy of SINS/GNSS integrated gravimetry system
View tableView in ArticleTable 3. Internal coincidence accuracy of SINS/GNSS integrated gravimetry system
Maximum Minimum RMS of single line RMS of total line Internal coincidence accuracy/ mGal Line 1 2.22 −1.57 1.03 1.53 Line 2 1.82 −3.05 1.30 Line 3 3.36 −2.92 1.75 Line 4 1.38 −2.77 1.02 Line 5 2.58 −4.73 2.46 Line 6 1.62 −2.59 1.05
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Guo Wei, Zekun Yang, Chunfeng Gao, Jian Zhou, Xudong Yu, Hui Luo, Bin Deng, Wenjian Zhou, Jiayi Cheng. Strapdown vehicle autonomous gravimetry method based on two-dimensional laser Doppler velocimeter[J]. Infrared and Laser Engineering, 2023, 52(6): 20230174
Paper Information
Category: Photoelectric measurement
Received: Mar. 29, 2023
Accepted: --
Published Online: Jul. 26, 2023
The Author Email: Yang Zekun (yang19892884881@163.com)
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