Accession Number:

ADA143962

Title:

Interference Problems for Nongeostationary Satellites,

Descriptive Note:

Corporate Author:

RAND CORP SANTA MONICA CA

Personal Author(s):

Report Date:

1984-02-01

Pagination or Media Count:

17.0

Abstract:

The interference problems faced by nongeostationary satellites may be of major significance. A general discussion indicates the scope of the problems and describes several configurations of importance. Computer programs are described, which are employed by NASAJPL and the U.S. Air Force Satellite Control Facility to provide interference-free scheduling of commands and data transmission. Satellite system mission planners are not concerned with the precise prediction of interference episodes, but rather with the expected total amount of interference, the mean and maximum duration of events, and the mean spacing between episodes. The procedures in the theory of probability developed by the author which permit calculation of such quantities are described and applied to several real cases. It may be anticipated that the problems will become steadily worse in the future as more and more data transmissions attempt to occupy the same frequency band. Author

Subject Categories:

  • Unmanned Spacecraft
  • Non-Radio Communications

Distribution Statement:

APPROVED FOR PUBLIC RELEASE