Accession Number : ADP006299

Title :   Frequency Selection and Interference Effects for Meteor Burst Systems,

Corporate Author : NATIONAL TELECOMMUNICATIONS AND INFORMATION ADMINISTRATION ANNAPOLIS MD

Personal Author(s) : Cohen, David J.

Report Date : 03 MAY 1990

Pagination or Media Count : 7

Abstract : The factors affecting the choice of frequency for a meteor burst system are identified and reviewed. Operationally, various physical models of the meteor burst reflection process are commonly used to predict the following parameters: information throughput, burst length, D region absorption and amplitude of the signal return. These parameters have specific frequency dependencies. Additional operational parameters such as interference, frequency allocations, and the prevalence of other ionospheric propagation modes at VHF frequencies also are frequency dependent. These frequency dependent parameters are analyzed to aid the meteor burst system developer in choosing a frequency of operation.

Descriptors :   *BURST TRANSMISSION, *IONIZATION TRAILS, D REGION, VERY HIGH FREQUENCY, FREQUENCY ALLOCATION, ATMOSPHERIC REFRACTION.

Subject Categories : Radiofrequency Wave Propagation

Distribution Statement : APPROVED FOR PUBLIC RELEASE