Application of adaptive filters to the problem of reducing microphony in arrays of pyroelectric infrared detectors

I. C. Carmichael; Paul R. White

doi:10.1117/12.49331

1 November 1991 Application of adaptive filters to the problem of reducing microphony in arrays of pyroelectric infrared detectors

I. C. Carmichael, Paul R. White

Author Affiliations +

Proceedings Volume 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing; (1991) https://doi.org/10.1117/12.49331
Event: San Diego, '91, 1991, San Diego, CA, United States

Abstract

This paper discusses a novel technique for reducing the effects of microphony in pyroelectric infrared arrays. The method is an enhancement of the existing compensation techniques and uses the digital signal processing methods. Specifically adaptive noise cancellation is employed to perform the compensation. The paper discusses the choice of the system parameters, type of algorithm to be used and performance of the technique when applied to array elements both close and distant in the array. A comparison with conventional compensation is also made.

Citation Download Citation

I. C. Carmichael and Paul R. White "Application of adaptive filters to the problem of reducing microphony in arrays of pyroelectric infrared detectors", Proc. SPIE 1541, Infrared Sensors: Detectors, Electronics, and Signal Processing, (1 November 1991); https://doi.org/10.1117/12.49331

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