The ISLS mode performance of terminal and enroute ATCRBS using existing and various improved antennas in the presence of perfectly dielectric flat ground are investigated theoretically. Necessary analytical expressions for various quantities characterizing the system performance have been derived. A computer program has been developed for the computation and tabulation of these quantities as functions of the elevation angle of the observation point for different combinations of heights of the directional and omnidirectional antennas. For each antenna combination results are given for the following seven quantities: the P1 and P2 pulse intensities, the pulse ratio P1/P2, the mainbeam killing and sidelobe punch-through zones in space, the effective azimuth beamwidth, the number of replies and the coverage diagram. Short discussions of results are given wherever appropriate.

  • Corporate Authors:

    University of Michigan, Ann Arbor

    Radiation Laboratory
    Ann Arbor, MI  United States  48104

    Transportation Systems Center

    55 Broadway, Kendall Square
    Cambridge, MA  United States  02142
  • Authors:
    • Sengupta, D L
    • Zatkalik, J
    • Tai, C T
  • Publication Date: 1975-2

Media Info

  • Pagination: 168 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00092986
  • Record Type: Publication
  • Source Agency: National Technical Information Service
  • Report/Paper Numbers: Intrm Rpt., FAA-RD-75-32
  • Contract Numbers: DOT-TSC-717
  • Files: NTIS
  • Created Date: Nov 18 1976 12:00AM