Accession Number : ADA265251


Title :   Disturbance Impact Assessment System (DIAS), Version 2.0. System Design Document


Descriptive Note : Final rept. 1990-1992


Corporate Author : NAVAL COMMAND CONTROL AND OCEAN SURVEILLANCE CENTER RDT AND E DIV SAN DIEGO CA


Personal Author(s) : Rose, R B ; Lambert, D R


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a265251.pdf


Report Date : Feb 1993


Pagination or Media Count : 260


Abstract : This technical document, actually a system design document or functional description document, covers the Disturbance Impact Assessment System (DIAS). This system is a computer software package designed to assess the effects of solar flares on HF radio communications. The document describes its software functions and their interrelationships. Specifically, the document (1) provides background information on the effects of high levels of solar activity on high-latitude HF missions, (2) outlines the architecture of DIAS, and (3) defines the product that DIAS provides to the user.... Propagation, Prophet, Propagation forecast, Solar disturbance, Expert systems.


Descriptors :   *COMPUTER PROGRAMS , *HIGH FREQUENCY , *RADIO EQUIPMENT , *SOLAR FLARES , PROPAGATION , ARCHITECTURE , SOLAR DISTURBANCES , HIGH LATITUDES , SOLAR ACTIVITY , MISSIONS , BACKGROUND , EXPERT SYSTEMS


Subject Categories : Computer Programming and Software
      Radio Communications


Distribution Statement : APPROVED FOR PUBLIC RELEASE