STUDY OF ROUGH GROUND AND GRADING CRITERIA FOR INSTRUMENT LANDING SYSTEM GLIDE SLOPE SITE PREPARATION

The scattering of electromagnetic radiation from rough surfaces has been studied. The diffuse and specular components of the scattered field are treated separately. Current grading of ILS sites requires rather stringent preparation of the ground. The application of this report is to develop grading criteria that reflect the statistical nature of the disturbance in observed signal rather than simply to consider the maximum allowable phase differences as the basis for establishing a grading criteria. (Author)

• Corporate Authors:

  Westinghouse Defense and Electronic Systems Center

  Aerospace and Electronic Systems Division
  Baltimore, MD  United States 
• Authors:
  • Godfrey, J T
  • Hartley, H F
  • Moore, R A
  • Moussally, G J
• Publication Date: 1978-3

Media Info

• Pagination: 69 p.

Subject/Index Terms

• TRT Terms: Air traffic control facilities; Earthwork; Excavating equipment; Glide path systems; Grading (Earthwork); Instrument landing systems; Landing fields; Location; Roughness; Scattering; Standards; Terminal air traffic control; Terrain
• Uncontrolled Terms: Building sites; Criteria; Grading; Preparation
• Old TRIS Terms: Air traffic control terminal; Instrument landing
• Subject Areas: Aviation; Operations and Traffic Management; Terminals and Facilities;

Filing Info

• Accession Number: 00175992
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: FAA-RD-78-42 Intrm Rpt.
• Contract Numbers: DOT-FA74WA-3353
• Files: NTIS, TRIS
• Created Date: Jul 19 1978 12:00AM