21 May 2015 Two-pass smoother based on the SVSF estimation strategy
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The smooth variable structure filter (SVSF) has seen significant development and research activity in recent years. It is based on sliding mode concepts, which utilizes a switching gain that brings an inherent amount of stability to the estimation process. In this paper, the SVSF is reformulated to present a two-pass smoother based on the SVSF gain. The proposed method is applied on an aerospace flight surface actuator, and the results are compared with the popular Kalman-based two-pass smoother.
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S. A. Gadsden, S. A. Gadsden, M. Al-Shabi, M. Al-Shabi, T. Kirubarajan, T. Kirubarajan, "Two-pass smoother based on the SVSF estimation strategy", Proc. SPIE 9474, Signal Processing, Sensor/Information Fusion, and Target Recognition XXIV, 947409 (21 May 2015); doi: 10.1117/12.2177256; https://doi.org/10.1117/12.2177256

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