An improved self-calibration algorithm for multilateration coordinates measuring system

Dongjing Miao; Guolei Wang; Jianshuan Li; Mingzhao He; Yao Kang

doi:10.1117/12.2243433

27 September 2016 An improved self-calibration algorithm for multilateration coordinates measuring system

Dongjing Miao, Guolei Wang, Jianshuan Li, Mingzhao He, Yao Kang

Proceedings Volume 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment; 96840P (2016) https://doi.org/10.1117/12.2243433
Event: Eighth International Symposium on Advanced Optical Manufacturing and Testing Technology (AOMATT2016), 2016, Suzhou, China

Abstract

It is difficult for the traditional self-calibration algorithm to achieve high precision calibration when measuring over a wide range. To overcome this shortcoming, an improved self-calibration algorithm for multilateration coordinates measuring system is proposed. Different from the traditional self-calibration algorithm, the improved algorithm preselect certain calibration points which is fixedly mounted on stable base, the lengths between specific points are measured precisely by laser interference method. Then the precise lengths are taken as a part of optimization objective function, and then the system parameters are determined by iterative computation. The effectiveness of the proposed algorithm is verified by simulations and experiments. The results show that by using the improved algorithm, the max error is only 8.9μm, the improved algorithm helps to improve the accuracy of the multilateration system significantly.

Citation Download Citation

Dongjing Miao, Guolei Wang, Jianshuan Li, Mingzhao He, and Yao Kang "An improved self-calibration algorithm for multilateration coordinates measuring system", Proc. SPIE 9684, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test, Measurement Technology, and Equipment, 96840P (27 September 2016); https://doi.org/10.1117/12.2243433

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