ERROR ANALYSIS OF THE RECOVERY OF DATA ACQUIRED BY A VOLTAGE-TO- FREQUENCY DATA ACQUISITION SYSTEM FOR SINUSOIDAL, STEP, AND RAMP INPUTS

Abstract

The errors generated by the recovery of data acquired by a voltage- to-frequency (V/F) data acquisition system are theoretically analyzed, using a digital computer. The input waveforms considered are the sinusoid, the step function, and the ramp function. In each case, the well known 'sampling theorem' of C. E. Shannon, viz, two samples per period of the smallest period present in the signal are sufficient for recovery of data with perfect fidelity, will be shown to be inapplicable as a criterion for accurate and reliable recovery of data acquired by a V/F system. The errors are of two categories: One is the error from linear interpolation recovery, and the other is from the fact that data points do not always coincide with the input.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1968
Accession Number
AD0673874

Entities

People

  • G. L. Williams

Organizations

  • Arnold Engineering Development Complex

Tags

Communities of Interest

  • Materials and Manufacturing Processes
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force
  • Computer Programs
  • Computers
  • Conversion
  • Data Acquisition
  • Digital Computers
  • Error Analysis
  • Errors
  • Frequency
  • Frequency Conversion
  • Interpolation
  • Intervals
  • Recovery
  • Sampling
  • Step Functions
  • Waveforms

Readers

  • Approximation Theory.
  • Image Processing and Computer Vision.