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High spatial resolution OFDR distributed strain sensing based on the adaptive residual statistical processing method
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DOI：10.1016/j.infrared.2025.106273.png)
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Abstract
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• We propose an adaptive residual statistical method to eliminate outliers, enabling high-spatial-resolution long-distance strain identification in the OFDR system. • A two-dimensional data matrix can be created and processed by reorganizing wavelength shift data along the fiber in the OFDR system. • The spatial resolution of 1.5 mm with a wavelength sweeping range of 20 nm over a 52-meter test fiber is achieved.
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