Methods of far-field extrapolation monitoring of the ILS glide slope angle are investigated. The use of a quasilinearization algorithm to determine path angle and width from measurements below obstruction heights at the middle marker is described with results for various fault conditions tabulated. A precision space modulation quotient monitor (SMQ) for measuring high values of DDM at low signal levels is described. A description of investigations of a field strength monitor using the capture effect principle to sense changes in low altitude field strength caused by environmental effects is included. (Author)

  • Corporate Authors:

    Ohio University, Athens

    3 Canterbury Drive
    Athens, OH  United States  45701
  • Publication Date: 1975-1

Media Info

  • Pagination: 87 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00166417
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: EER-5-21, FAA-RD-75-201
  • Contract Numbers: DOT-FA69WA-2066
  • Files: NTIS
  • Created Date: Sep 28 2002 12:00AM