Methods of Generating IFF Reply Symbols

Abstract

NRL report R-2980 "A Method of Coding and Displaying IFF Reply Symbols" described a pulse=pattern coder for transponders which used a mechanical commutating and switching arrangement to control the composition of successive pulse groups. These groups, when presented on an unmodified conventional indicator such as a PPI, form distinctive symbols designating the individual identity of the vehicle carrying the transponder. Different methods of obtaining the same results were investigated and two are described in this report.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Jun 08, 1949
Accession Number
AD1210721

Entities

People

  • W. M. Jr Furlow

Organizations

  • United States Naval Research Laboratory

Tags

DTIC Thesaurus Topics

  • Communication Equipment
  • Identities
  • Indicators
  • Mathematics
  • Radio Equipment
  • Radio Receivers
  • Switching
  • Transponders

Readers

  • Aerospace Test and Evaluation
  • Computer Programming and Software Development.
  • Systems Analysis and Design