12 January 2018 Investigation on coupling error characteristics in angular rate matching based ship deformation measurement approach
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Abstract
The coupling error in the measurement of ship hull deformation can significantly influence the attitude accuracy of the shipborne weapons and equipments. It is therefore important to study the characteristics of the coupling error. In this paper, an comprehensive investigation on the coupling error is reported, which has a potential of deducting the coupling error in the future. Firstly, the causes and characteristics of the coupling error are analyzed theoretically based on the basic theory of measuring ship deformation. Then, simulations are conducted for verifying the correctness of the theoretical analysis. Simulation results show that the cross-correlation between dynamic flexure and ship angular motion leads to the coupling error in measuring ship deformation, and coupling error increases with the correlation value between them. All the simulation results coincide with the theoretical analysis.
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Shuai Yang, Wei Wu, Xingshu Wang, Zhiguang Xu, "Investigation on coupling error characteristics in angular rate matching based ship deformation measurement approach", Proc. SPIE 10621, 2017 International Conference on Optical Instruments and Technology: Optoelectronic Measurement Technology and Systems, 106211N (12 January 2018); doi: 10.1117/12.2295294; https://doi.org/10.1117/12.2295294
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