Selection of frequencies for deep-space telecommunications
Abstract
The procedures used by the Jet Propulsion Laboratory to select and recommend frequencies to be used for deep space telecommunications are explained. The frequency selection process described deals only with the potential for radio frequency interference between deep space telecommunication links. Channel plans based on bandwidth, hardware implementation, and frequency ratio considered are used. The channel selection process is based on calculations and analysis of interference-to-signal power ratios as a function of time for each possible pair of missions. The modes of interference and the interference protection ratio are explained, and the interference analysis procedure described. Equations used in calculating the downlink and uplink interference analyses are presented.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- June 1982
- Bibcode:
- 1982tdar.nasa...49D
- Keywords:
-
- Communication Networks;
- Deep Space Network;
- Radio Frequency Interference;
- Downlinking;
- Frequency Control;
- Signal Analysis;
- Signal To Noise Ratios;
- Space Communication;
- Uplinking;
- Communications and Radar