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Communication Dans Un Congrès Année : 2014

Analytic Phase Retrieval of Dynamic Optical Feedback Signals for Laser Vibrometry

Résumé

This paper presents a robust phase estimation to detect fringes of self-mixing signals for all feedback levels. It aims to avoid the need of restricting a particular working feedback regime for a sensor which is usually done by external optical/mechanical components. By removing the local offset from a set of fringes, their orthogonal representation can be obtained through the Hilbert transform allowing a unique calculation disregarding their shape in time. From it, it is possible to retrieve the displacement of a pointed target from a wide variety of usage conditions. The pertinence of the proposed approach for sensor implementation is also demonstrated.
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Dates et versions

hal-01090363 , version 1 (03-12-2014)

Identifiants

  • HAL Id : hal-01090363 , version 1

Citer

Antonio Luna Arriaga, Francis Bony, Thierry Bosch. Analytic Phase Retrieval of Dynamic Optical Feedback Signals for Laser Vibrometry. IEEE Sensors Conference, Nov 2014, Valencia, Spain. ⟨hal-01090363⟩
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