Accession Number:

ADA029738

Title:

Large Time Bandwidth Synchronization Preambles.

Descriptive Note:

Final technical rept. 15 Apr 75-9 Apr 76,

Corporate Author:

HUGHES AIRCRAFT CO FULLERTON CALIF GROUND SYSTEMS GROUP

Personal Author(s):

Report Date:

1976-07-01

Pagination or Media Count:

158.0

Abstract:

The report presents the results of the Large Time Bandwidth Synchronization Preamble Program which developed a technique for detecting large time-bandwidth synchronization preambles in Time Division Multiple Access TDMA systems. The preamble detector provides synchronization preambles on a burst by burst basis in the presence of a large doppler frequency shift and in the presence of sophisticated jammers. A baseline preamble waveform and preamble detector which meets the stated objectives was developed. The chosen approach used a combination of predetection correlation and post-detection correlation to provide the desired detection characteristics with minimum hardware. A breadboard test model was built, and a production model configuration costing less than 2K was developed. The baseline concept embodied a compromise between tried and proven hardware and relatively undeveloped new devices to achieve a full 800 chip correlation with an addressing function.

Subject Categories:

  • Countermeasures
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE