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12 April 2021 The two-pass sliding innovation smoother
Mohammad A. AlShabi, S. Andrew Gadsden, Mamdouh El Haj Assad, Bassam Khuwaileh
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Proceedings Volume 11756, Signal Processing, Sensor/Information Fusion, and Target Recognition XXX; 1175609 (2021) https://doi.org/10.1117/12.2587344
Event: SPIE Defense + Commercial Sensing, 2021, Online Only
Abstract
The sliding innovation filter (SIF) is a newly developed filter that shares similar principles with sliding mode observers and variable structure techniques. The SIF is formulated as a predictor-corrector method that uses the innovation or measurement error as a switching hyperplane and forces the states to remain within a region of its state trajectory. In this brief paper, the SIF is reformulated as a two-pass smoother to reduce the effects of noise and improve the overall performance. The proposed method, known as the sliding innovation smoother (SIS), is applied on an aerospace flight surface actuator, and the results are compared to the original filter.
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Mohammad A. AlShabi, S. Andrew Gadsden, Mamdouh El Haj Assad, and Bassam Khuwaileh "The two-pass sliding innovation smoother", Proc. SPIE 11756, Signal Processing, Sensor/Information Fusion, and Target Recognition XXX, 1175609 (12 April 2021); https://doi.org/10.1117/12.2587344
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KEYWORDS
Actuators
Aerospace engineering
Switching
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