Piece-wise transition detection algorithm for a self-mixing displacement sensor
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摘要:
A piece-wise transition detection algorithm that performs displacement measurements for self-mixing sensors is developed.The algorithm can correctly detect self-mixing fringes at a low signal-to-noise ratio in the presence of disturbances without filtering.Displacement reconstructions by the phase unwrapping method based on this algorithm are experimentally validated,with laser subject to the moderate feedback regime.