Accession Number : AD0776118

Title :   Development of a Discrete Address Beacon System.

Descriptive Note : Quarterly technical summary no. 8, 1 Oct-31 Dec 73.

Corporate Author : MASSACHUSETTS INST OF TECH LEXINGTON LINCOLN LAB

Report Date : 01 JAN 1974

Pagination or Media Count : 84

Abstract : The report includes results of recent studies directed at firming up all performance specifications being incorporated in the DABS engineering development model requirements documents. These studies included: the prediction of link performance under marginal operating conditions; the assessment of coding performance and candidate preambles; and the extension of sensor coverage predictions. Also included are the objectives of an effort to explore highly interrelated system and sensor functions via computer simulation, and descriptions of the latest modes of operation of the Channel Management, Surveillance Processing, Data Link Processing and Network Management functions and their subfunctions. Planning and analysis tasks to prepare for demonstrating IPC performance at DABSEF are given. Chapters on the DABS experimental facility summarize results to date from direction-finding and multipath experiments, and highlight progress being made to convert the facility from an experimental link to a demonstration sensor. (Modified author abstract)

Descriptors :   *Air traffic control systems, *Radar beacons, *Data links, Detectors, Antennas, Signal processing, Avionics, Transponders

Subject Categories : Air Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE