• Analysis of signal-to-noise enhancement of box-car averagers

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      https://www.ias.ac.in/article/fulltext/pram/011/03/0295-0306

    • Keywords

       

      Signal averaging; Box-Car averager; signal-to-noise improvement ratio

    • Abstract

       

      The signal-to-noise improvement ratio (SNIR) of a Box-Car averager is calculated for various noise sources such as random white noise, exponentially correlated noise, etc. For a time constant (RC), and a sampling time ε, the quoted value of SNIR as (2RC/ε)1/2 is shown to be strictly correct only when the noise is white and deviation from this law is expected for other non-white noise sources. The validity of some of the calculated expressions is established by direct measurement of noise output.

    • Author Affiliations

       

      K Neelakantan1 S Dattagupta1

      1. Reactor Research Centre, Kalpakkam - 603 102
    • Dates

       
  • Pramana – Journal of Physics | News

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