A pulse radiopositioning system, designated SYLEDIS, has been developed, which does not rely on radar techniques. The use of compression of long pulses by correlation methods, and of a carrier wave in the 420-450 MHz band, has resulted in a highly accurate system, insensitive to soil conductivity, exhibiting no ambiguity problem, capable of ranges of 2 or 3 times the line of sight, and not limited by obstacles of reasonable size. SYLEDIS is highly flexible and operates in the range or hyperbolic modes.

  • Supplemental Notes:
    • AGARD Conf Proc, n 209: Propag Limitations of Navig and Positioning Syst, Presented at the Electromagn Wave Propag Panel Spec Meet, Istanbul, Turkey, Oct 20-22 1976.
  • Corporate Authors:

    Advisory Group Aerospace Research and Development

    7 Rue Ancelle
    92 Neuilly-sur-Seine,   France 
  • Authors:
    • Laurent, P
    • Nard, G
  • Publication Date: 1977-2

Media Info

  • Features: References;
  • Pagination: 21 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00173486
  • Record Type: Publication
  • Source Agency: Engineering Index
  • Report/Paper Numbers: Proceeding
  • Files: TRIS
  • Created Date: Apr 26 1978 12:00AM