Note: Sensitivity enhancement in continuous-wave electron paramagnetic resonance: Adaptive signal averaging versus a moving average

Christopher G. Brinton, Donald J. Hirsh

Research output: Contribution to journalArticle

4 Scopus citations

Abstract

We compare improvements in signal-to-noise in continuous-wave electron paramagnetic resonance (CW EPR) spectra resulting from adaptive signal averaging and a simple moving average. An adaptive filter module that uses a recursive least-squares (RLS) algorithm was incorporated into a CW EPR data acquisition program. After optimization, the RLS filter produces a significant improvement in the signal-to-noise ratio over conventional digital signal (spectral) averaging alone. However, conventional averaging of spectra combined with a central moving average of the data points provided equal or greater signal-to-noise improvement in the CW EPR spectra.

Original languageEnglish (US)
Article number026102
JournalReview of Scientific Instruments
Volume81
Issue number2
DOIs
StatePublished - Mar 16 2010
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Instrumentation

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