Comparison of different control loop concepts for direct distance measurement using photonic mixing devices (PMD)
Becker D, Gulden P, Vossiek M (2002)
Publication Language: English
Publication Type: Conference contribution, Conference Contribution
Publication year: 2002
Edited Volumes: Proceedings of IEEE Sensors
Book Volume: 1
Pages Range: 151-155
Conference Proceedings Title: IEEE Sensors 2002. First IEEE International Conference on Sensors
Event location: Orlando, Florida
DOI: 10.1109/ICSENS.2002.1037007
Abstract
This paper presents two different control loop approaches for distance measurement with photonic mixing devices (PMD). Possible all-analog implementations are pointed out, and measurements with two different loop types using our laboratory PMD system are provided. It is shown that the PI control loop implementation reaches distance accuracy comparable to previous modulation methods, but on the other hand suffers from present offsets of the PMD. For the second method, the steepest descent algorithm, contrary results are obtained. This method is not susceptible to offset variations, but requires a fairly high SNR to converge. Finally the requirements for all-analog closed loop implementation imposed on the next generation of PMD elements are pointed out.
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APA:
Becker, D., Gulden, P., & Vossiek, M. (2002). Comparison of different control loop concepts for direct distance measurement using photonic mixing devices (PMD). In IEEE Sensors 2002. First IEEE International Conference on Sensors (pp. 151-155). Orlando, Florida.
MLA:
Becker, Dirk, Peter Gulden, and Martin Vossiek. "Comparison of different control loop concepts for direct distance measurement using photonic mixing devices (PMD)." Proceedings of the First IEEE International Conference on Sensors - IEEE Sensors 2002, Orlando, Florida 2002. 151-155.
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