Instrument Landing System Improvement Program

Abstract

Results of technical investigations to provide improvement in ILS performance are presented. More than 12 separate tasks are reported with major emphases on integral analog monitoring for the glide slope and localizer, new localizer design for minimization of path perturbation due to multipath, and development of a mathematical model for predicting effects on the glide path of signals reflecting from jumbo aircraft. Also, results were obtained from analyses of snow cover effects on the glide path. Analyses to determine modulator and bridge tolerances are presented together with recommendations for revised tolerances. Specifications and tolerances are presented for preparation of the ground planes in the vicinity of image glide paths. These are based on previously developed mathematical models. Conclusions and recommendations for improvements in glide path performance at specific sites are presented.

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Document Details

Document Type
Technical Report
Publication Date
Jun 01, 1972
Accession Number
AD0750071

Entities

Organizations

  • Ohio University

Tags

Communities of Interest

  • Advanced Electronics
  • Air Platforms

DTIC Thesaurus Topics

  • Arm Bones
  • Computational Science
  • Computer Programs
  • Coordinate Systems
  • Detectors
  • Doppler Effect
  • Electrical Engineering
  • Geography
  • Geometry
  • Mathematical Models
  • Measurement
  • Plastic Explosives
  • Radiation Patterns
  • Signal Generators
  • Test And Evaluation
  • Transmission Lines
  • Waveforms

Readers

  • Aviation Science / Aeronautics.
  • Systems Analysis and Design
  • Wave Propagation and Nonlinear Chaotic Dynamics.