Accession Number : ADA326719

Title :   A Markov Model for HF Channel Availability in Central Australia.

Descriptive Note : Technical rept.,

Corporate Author : DEFENCE SCIENCE AND TECHNOLOGY ORGANIZATION CANBERRA (AUSTRALIA)

Personal Author(s) : Percival, D. J. ; Kraetzl, M. ; Britton, M.

PDF Url : ADA326719

Report Date : FEB 1997

Pagination or Media Count : 52

Abstract : In this report, the extensive database of HF spectral surveillance and background noise measurements, recorded at Alice Springs in Central Australia as part of the Jindalee over-the-horizon radar project, is used to develop a model for HF channel availability. Parameters in a two dimensional cyclostationary Markov model are estimated for representative months of Jindalee data. The resulting model may he used for short-term forecasting of HF channel availability for radar and communications, and as the stalling point for a study into long-term trends in usage.

Descriptors :   *HIGH FREQUENCY, *MARKOV PROCESSES, *OVER THE HORIZON RADAR, DATA BASES, MATHEMATICAL MODELS, SIGNAL TO NOISE RATIO, AVAILABILITY, RADAR CLUTTER, RADAR SIGNALS, AUSTRALIA, BACKGROUND NOISE, DIURNAL VARIATIONS, NOISE(RADAR).

Subject Categories : Active & Passive Radar Detection & Equipment
      Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE