Generalized Digital Simulation of a CDAA Direction Finding System

Abstract

The simulation program GCAAS (General Circular Antenna Array Simulator) has been developed to simulate the output data from a circularly disposed antenna array (CDAA)-direction finding system under known input signal conditions. The CDAA system which has been simulated is similar to the Wullenweber Direction Finding System at the University of Illinois and may consist of as many as 360 antenna elements in a circular array of any reasonable dimensions and simulates the outputs obtained from the array used in a scanning mode. The input signal conditions may include up to five incoming signals at different azimuthal and elevation angles of arrival with time-dependent relative phase shifts between the incoming signals. The output consists of the sum, difference and differential phase data sampled at regular intervals of azimuth and stored on magnetic tape for further use in the determination of the direction of arrival. A maximum of 100 samples of the output data set may be obtained from each scan.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1970
Accession Number
AD0880991

Entities

People

  • Edward W. Ernst
  • R. E. Hunninghaus

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Advanced Electronics
  • Weapons Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Amplitude Modulation
  • Angle Of Arrival
  • Antenna Arrays
  • Coordinate Systems
  • Data Acquisition
  • Data Sets
  • Delay Lines
  • Department Of Defense
  • Direction Finding
  • Engineering
  • Hard Copy
  • Illinois
  • Magnetic Tape
  • Mathematical Models
  • Simulators
  • Universities

Fields of Study

  • Engineering

Readers

  • Computational Modeling and Simulation
  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Phased Array Antenna Design.