• DocumentCode
    1205302
  • Title

    A Simple Fast Frequency Detector for a Constant Amplitude Sinusoid

  • Author

    Mahmood, Mahir K. ; Allos, Janan E. ; Abdul-Karim, Majid A.H.

  • Volume
    33
  • Issue
    4
  • fYear
    1984
  • Firstpage
    327
  • Lastpage
    329
  • Abstract
    The frequency of a constant-amplitude sinusoidal signal is measured within a small fraction of a cycle. This is accomplished by carrying out computations on two successive samples of the input signal. System delay expressed in a fraction of a cycle is given by two times the ratio of the input-to-sampling frequencies. An inverse sine function is computed using digital hardware, giving a digital output representing the frequency.
  • Keywords
    Counting circuits; Delay systems; Detectors; Frequency measurement; Hardware; Power system transients; Sampling methods; Time measurement; Timing; Velocity measurement;
  • fLanguage
    English
  • Journal_Title
    Instrumentation and Measurement, IEEE Transactions on
  • Publisher
    ieee
  • ISSN
    0018-9456
  • Type

    jour

  • DOI
    10.1109/TIM.1984.4315233
  • Filename
    4315233