Accession Number:

ADA009429

Title:

DABS Link Performance Considerations.

Descriptive Note:

Project rept.,

Corporate Author:

MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Personal Author(s):

Report Date:

1975-04-28

Pagination or Media Count:

61.0

Abstract:

The DABS link performance is computed using the present values for the system operating parameters and the available models that describe environmental and aircraft antenna effects. The various fade mechanisms are described, and a statistical determination of performance if proposed. The performance is computed for various sets of conditions including different ground antennas, aircraft maneuvers, antenna pedestal heights, ground reflection coefficients and reduced power. Also discussed are the effects of obstructions and the performance when aircraft are in the cone of silence. The DABS link is found to have very good overall performance with only small regions of reduced reliability that are at low angles or due to maneuvers. Those missed replies due to maneuvers are found to be sporadic from scan to scan.

Subject Categories:

  • Air Navigation and Guidance
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE