Accession Number : ADA133401

Title :   Issues Critical to the Application of Adaptive Array Antennas to Missile Seekers.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV LAUREL MD APPLIED PHYSICS LAB

Personal Author(s) : Trapp,R L ; Ronnenburg,C H

PDF Url : ADA133401

Report Date : Sep 1983

Pagination or Media Count : 46

Abstract : Missile seekers will confront complex and hostile signal environments that can inhibit severely their ability to intercept threatening targets. Dramatic target detection and homing performance improvement in main beam and sidelobe jamming is realizable with a seeker antenna that can optimally adapt, in real time, its response to the signal environment. Adaptive array antennas can be designed to optimize the signal-to-interference-plus-noise ratio by forming pattern nulls directed toward sources of interference while simultaneously maximizing gain in the desired signal direction. Physical and operational missile constraints place severe requirements on an adaptive array. Nevertheless, there are several array configurations and adaptive processors that can satisfy these constraints in the next decade. Technology is a dominant limitation to adaptive array performance in a missile seeker. Signal processors and array implementations using state-of-the-art technology are required. Critical experimentation and representative simulations are needed to establish error effects, preferred adaptive array implementations, detailed requirements, and relative cost estimates. Although an adaptive missile seeker antenna is physically realizable in the next decade, the tradeoffs between cost, complexity, and performance will determine its utility and practicality. (Author)

Descriptors :   *Antijamming, *Guided missile antennas, *Antenna arrays, *Adaptive systems, *Radar homing, Beam forming, Homing devices, Nulls(Amplitude), Signal processing, Target detection, Performance(Engineering), Requirements, Guided missile components, Homing, Environments, Intensity, Configurations, Physical properties, Errors, State of the art, Patterns, High rate, Signals, Cost estimates, Arrays, Real time, Interception, Jamming

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

Distribution Statement : APPROVED FOR PUBLIC RELEASE