Cross-Spectral Properties of Some Common Waveforms in the Presence of Uncorrelated Noise

Abstract

The magnitude coherence and phase for a number of common waveforms in the presence of uncorrelated noise is derived mathematically and presented graphically. Discussion is limited to waveforms resulting from the combination of no more than two traveling waves. The effects of the relative magnitude of the traveling wave components, as well as the uncorrelated noise, are seen. The effect of wave speed is also noted. Finally, the periodicity with respect to frequency, observed in the resultant plots, is shown to be significant and is a reflection of the relative wave speeds. A table summarizing the results is also presented.

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Document Details

Document Type
Technical Report
Publication Date
Aug 06, 1975
Accession Number
ADA014425

Entities

People

  • Alan E. Markowitz

Organizations

  • Naval Underwater Systems Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Acoustic Waves
  • Acoustics
  • Cross Correlation
  • Data Analysis
  • Doppler Effect
  • Equations
  • Frequency
  • Noise
  • Periodic Variations
  • Reflection
  • Self Noise
  • Signal Processing
  • Standing Waves
  • Step Functions
  • Traveling Waves
  • Waveforms
  • Waves

Fields of Study

  • Physics

Readers

  • Approximation Theory.
  • Combustion Dynamics and Shock Wave Physics.