NOTES ON THE CHARACTERISTICS OF RADAR SIGNALS IN INCOHERENT SCATTERING

Abstract

Expressions have been derived for spectra of scattering for scattering of the incoherent kind. These expressions contain temperature as a parameter, which could in principle be determined by making suitable measurements on the spectrum of scattering. The importance of accuracy in such measurements becomes clear, if it is realized that if the measurement of the width of the spectrum is in error by a factor F, the deduced value of temperature will be in error by the factor F2, the width of the spectrum being proportional only to the square root of the temperature. All predictions made so far for the spectra are based on the assumption that a sine wave is transmitted and that the received signal is observed continuously. The effects of pulsing the transmitter an gating the receiver are discussed. In most temperature measurements these effects should clearly be taken into account. Even in cases where this is not necessary, the measurement of temperature is not a trivial matter. The measurement of temperature in such cases is discussed in detail. (Author)

Document Details

Document Type
Technical Report
Publication Date
Sep 30, 1961
Accession Number
AD0274721

Entities

People

  • T. Laaspere

Organizations

  • Cornell University

Tags

DTIC Thesaurus Topics

  • Accuracy
  • Diffraction
  • Electromagnetic Scattering
  • Errors
  • Incoherent Scattering
  • Measurement
  • Radar Signals
  • Scattering
  • Sine Waves
  • Spectra
  • Square Roots
  • Transmitters
  • Wave Phenomena

Readers

  • Radar Systems Engineering.
  • Spectroscopy.
  • Theoretical Analysis.