Fortran Program for Helicopter Blade Modulation Signal.

Abstract

The modulation signal for the rotating helicopter blade is derived in Reference 1. Two basic models were proposed in this reference: a model based on scattering from the blade tip and a specular flash model. Evidence presented in Reference 2 is somewhat inconclusive, although the statement is made that 'most of the echo is derived from the outer portions of the rotor blade (approximately the outer 20% of the blade length)'. Such a statement supports the model where scattering is assumed to occur at the blade tip. (Author)

Open PDF

Document Details

Document Type
Technical Report
Publication Date
May 22, 1978
Accession Number
ADA089575

Entities

People

  • R. L. Mitchell

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplitude
  • Amplitude Modulation
  • Aspect Angle
  • Assembly
  • Blade Tips
  • Blades
  • Frequency
  • Helicopter Rotors
  • Helicopters
  • Leading Edges
  • Modulation
  • Procedures (Computers)
  • Sampling
  • Scattering
  • Simulations

Fields of Study

  • Physics

Readers

  • Aerodynamics.
  • Computational Modeling and Simulation
  • Radar Systems Engineering.