A MODEL FOR THE POWER SPECTRUM OF RETURNED ECHOES FROM A RANDOM COLLECTION OF MOVING SCATTERERS

Abstract

The time-varying correlation function for a radar (sonar) back-scattered noise process is determined. An approximation is made in order to obtain an expression for the power spectrum of the noise process. The correlation function and the power spectrum are both a function of the probability density that a scatter will be at range r and time t as well as the signal pulse shape. This implies that in order to minimize the noise power the signal may not be wideband but is affected by the probability distribution of the scatterers.

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 1963
Accession Number
AD0429475

Entities

People

  • D. G. Childers
  • I. S. Reed

Organizations

  • University of Southern California

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Air Force
  • Doppler Effect
  • Electrical Engineering
  • Electronics Laboratories
  • Engineering
  • Frequency
  • Government Procurement
  • Intervals
  • Power Spectra
  • Probability
  • Probability Distributions
  • Radial Velocity
  • Random Variables
  • Scattering
  • Stationary
  • United States
  • Waveforms

Fields of Study

  • Physics

Readers

  • Radar Systems Engineering.
  • Statistical inference.