Accession Number:

AD0808296

Title:

PASSIVE BEACON TECHNIQUES.

Descriptive Note:

Final rept. 1 Jul 65-3 Mar 66,

Corporate Author:

WESTINGHOUSE ELECTRIC CORP BALTIMORE MD SURFACE DIV

Personal Author(s):

Report Date:

1967-01-01

Pagination or Media Count:

224.0

Abstract:

This document describes the work performed on an investigation entitled Passive Beacon Techniques, which is aimed at a feasibility demonstration of the hollow Helisphere reflector as a ground marker beacon for use with low-flying airborne radar. The investigation included the design, construction and test of a 60 inch diameter inflatable Helisphere passive beacon, capable of producing modulated coded radar echoes with omni-azimuth coverage over better than an octave bandwidth in the X-band to Ku-band region. Also included was the modification of an ANAPS-42 radar set to permit detection and recognition of the coded beacon returns, and to display them as enhanced blinking echoes on the radar indicator. This final report includes a discussion of the advantages of passive beacons compared with active transponders and a consideration of the system aspects of coded ground marker beacons. Also presented are the design and evaluation tests of the light-weight, man-transportable Helisphere beacon model built for this study, together with a description of the signal processor circuits designed and built for use with the ANAPS-42 radar. The flight test program for evaluating the beacon system is discussed.

Subject Categories:

  • Active and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE