Accession Number : AD0919655

Title :   ECM/ECCM Studies. Volume 3. Adaptive Array Technique Study.

Descriptive Note : Final rept. 29 Jan-28 Feb 74,

Corporate Author : SYRACUSE UNIV RESEARCH CORP NY

Personal Author(s) : Chapman, Dean J.

Report Date : FEB 1974

Pagination or Media Count : 122

Abstract : The studies documented in this report expand the experience gained by the Syracuse University Research Corporation (SURC) under previous U. S. Army Advanced Ballistic Missile Defense Agency-sponsored studies. The earlier ballistic missile defense system studies have indicated the desirability of having radar systems with fully adaptive array apertures. These apertures typically contain a large number of elements. The previous studies suggested that partially adaptive apertures would provide satisfactory performance. If this were possible, the complexity of the arrays could be reduced, which would, consequently, reduce their cost. However, the results obtained at that time were only preliminary indications since the simulation used in the tests was fairly elementary. In the recent studies, the feasibility of using partially adaptive apertures was investigated using a more detailed simulation. Several configurations of partially adaptive systems were considered. Emphasis was placed on evaluating the effects of beam forming errors and relative transient response times. Related effects of main beam constraints were also considered.

Descriptors :   *PHASED ARRAYS), (*ELECTRONIC COUNTERMEASURES, (*ADAPTIVE SYSTEMS, ARRAYS), ANTIMISSILE DEFENSE SYSTEMS, ELECTRONIC COUNTER COUNTERMEASURES, RADAR JAMMING, GAIN, TRANSIENTS, ANTENNA APERTURES, BEAM FORMING, EQUATIONS, SIGNAL TO NOISE RATIO, SIMULATION, COSTS.

Subject Categories : Antimissile Defense Systems
      Radar Countermeasures
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE