Use of Property Restoral Algorithms for Blind Adaptation of Receive-Path and Transmit-Path Antenna Arrays in a Ground-Based Communication System Phase 1

Abstract

A receive adaptation algorithm which is tailored for spread spectrum communications, frequency hopping and direct sequence, has been developed. A receive architecture which is compatible with existing Army radios, yet flexible enough to accommodate a variety of algorithms, using commercially available and proven components, and with minimum complexity to allow size and power reductions in future designs to result in compatibility with the Army's mobile applications, has been developed. The performance of the algorithm and limitations of the architecture have been simulated, and the expected performance is evaluated. In addition, the possibility of using the information acquired during receive adaptation to steer transmit beams in either retrodirective or directive fashion was explored. Two applications in particular are addressed: Low Probability of Intercept (LPI) and Anti-Jam (A/J) communications. The concepts for application of an Adaptive Array Processor (AAP) to LPI and A/J communications is presented, and the expected performance is simulated and evaluated.

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Document Details

Document Type
Technical Report
Publication Date
Feb 22, 1991
Accession Number
ADA234242

Entities

People

  • Dean W. Minster

Tags

Communities of Interest

  • Advanced Electronics
  • Energy and Power Technologies
  • Sensors

DTIC Thesaurus Topics

  • Accuracy
  • Algorithms
  • Automatic Gain Control
  • Bandpass Filters
  • Communication Systems
  • Computers
  • Frequency
  • Frequency Agility
  • Frequency Bands
  • Frequency Synthesizers
  • Radio Communications
  • Radio Equipment
  • Radio Frequency
  • Radio Frequency Amplifiers
  • Signal Processing
  • Spread Spectrum
  • Surface Acoustic Waves

Fields of Study

  • Engineering

Readers

  • Military Leadership and Professional Education.
  • Phased Array Antenna Design.
  • Radio communications and signal processing.