Piece-wise transition detection algorithm for a self-mixing displacement sensor

• 作 者: 黄贞 李成伟 孙晓刚
• 机 构: School of Electrical Engineering and Automation,Harbin Institute of Technology,
• 出 处: Chinese Optics Letters
• 发表日期: 2013年09期
• 关键词: mixing correctly moderate reconstructed validated filtering noisy absolute false

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.

A piece-wise transition detection algorithm that performs displacement measurements for self-mixing sensors is developed. 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.