Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10408433 | Optics & Laser Technology | 2005 | 6 Pages |
Abstract
This paper proposes a robust discrete time Kalman filter (RDKF) for the dynamic compensation of nonlinearity in a homodyne laser interferometer for high-precision displacement measurement and in real time. The interferometer system is modelled to reduce the calculation of the estimator. A regulator is applied to improve the robustness of the system. An estimator based on dynamic modelling and a zero regulator of the system was designed by the authors of this study. For real measurement, the experimental results show that the proposed interferometer system can be applied to high-precision displacement measurement in real time.
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Engineering
Electrical and Electronic Engineering
Authors
Tong-Jin Park, Hyeun-Seok Choi, Chang-Soo Han, Yong-Woo Lee,