Accession Number : AD0920273

Title :   Study of a Sidelobe Interference Reduction Method for Radar Systems. Part I. Analysis and Result of 1 and 2 Dimensional Taylor Patterns Cancellation.

Descriptive Note : Interim technical rept. 1 Feb-30 Sep 73,

Corporate Author : TENNESSEE UNIV KNOXVILLE DEPT OF ELECTRICAL ENGINEERING

Personal Author(s) : Peebles, Peyton Z., Jr

Report Date : NOV 1973

Pagination or Media Count : 118

Abstract : A new method is described for reducing radar interference due to coherent target returns arriving from sidelobe directions. The method, applicable to phased array systems, is based upon use of two transmission patterns on alternate transmissions. One pattern, the 'specified' pattern P(u), is arbitrary while the second, the realized pattern Pr(u), has ideally the same main-lobe but the negative of the sidelobes of P(u). By averaging a number of transmissions the sidelobe interference is reduced while mainlobe returns are unaffected. Examples of realized patterns Pr(u) are given based upon both Taylor line source and Taylor circularly symmetric specified patterns. Continuing analysis will investigate the new force-point synthesis technique used to achieve the realized pattern. Various classes of aperture geometries and illumination functions will be studied. (Author)

Descriptors :   (*RADAR INTERFERENCE, REDUCTION), (*RADAR PULSES, MULTIPATH TRANSMISSION), SIDELOBES, RADAR CLUTTER, RADAR ANTENNAS, REPEATER JAMMERS, PHASED ARRAYS, RADAR TARGETS, INFORMATION THEORY, AIRCRAFT, AERIAL TARGETS, BUILDINGS, SURFACE TARGETS, ANTENNA APERTURES.

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE