Amplitude correlation and direct spectral analysis of low photon rate LDV signals.

Research output: ResearchChapter

Abstract

Photon resolved signals may be converted to signals that are suitable for classical correlation analysis or spectral analysis of the signal amplitudes by low pass filtering the train of photon pulses. The correlations and spectra obtained from the amplitudes contain the same information that photon correlations contain. Amplitude analysis is compared with photon rate analysis in the context of laser Doppler velocimetry. It is shown that modern amplitude correlation techniques permit correlation rates comparable to those of photon correlation. These techniques are advantageous in many situations because they are immune to photon pile up, so the maximum available signal power can be used. Direct spectral analysis of the photon rate is also compared to direct spectral analysis of the amplitudes. In this case amplitude analysis avoids the photon pile up limitation, and it also permits analog anti-aliasing filtering. (A)

LanguageEnglish (US)
Title of host publicationUnknown Host Publication Title
PublisherStanford Univ.Spectron Dev. Labs. Inc
StatePublished - 1800
Externally publishedYes

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Spectrum analysis
Photons
Piles
Anti-aliasing
Velocity measurement
Lasers

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Adrian, R. J. (1800). Amplitude correlation and direct spectral analysis of low photon rate LDV signals. In Unknown Host Publication Title Stanford Univ.Spectron Dev. Labs. Inc.

Amplitude correlation and direct spectral analysis of low photon rate LDV signals. / Adrian, R. J.

Unknown Host Publication Title. Stanford Univ.Spectron Dev. Labs. Inc, 1800.

Research output: ResearchChapter

Adrian, RJ 1800, Amplitude correlation and direct spectral analysis of low photon rate LDV signals. in Unknown Host Publication Title. Stanford Univ.Spectron Dev. Labs. Inc.
Adrian RJ. Amplitude correlation and direct spectral analysis of low photon rate LDV signals. In Unknown Host Publication Title. Stanford Univ.Spectron Dev. Labs. Inc. 1800.
Adrian, R. J./ Amplitude correlation and direct spectral analysis of low photon rate LDV signals.Unknown Host Publication Title. Stanford Univ.Spectron Dev. Labs. Inc, 1800.
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AB - Photon resolved signals may be converted to signals that are suitable for classical correlation analysis or spectral analysis of the signal amplitudes by low pass filtering the train of photon pulses. The correlations and spectra obtained from the amplitudes contain the same information that photon correlations contain. Amplitude analysis is compared with photon rate analysis in the context of laser Doppler velocimetry. It is shown that modern amplitude correlation techniques permit correlation rates comparable to those of photon correlation. These techniques are advantageous in many situations because they are immune to photon pile up, so the maximum available signal power can be used. Direct spectral analysis of the photon rate is also compared to direct spectral analysis of the amplitudes. In this case amplitude analysis avoids the photon pile up limitation, and it also permits analog anti-aliasing filtering. (A)

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