A compact presentation of DSN array telemetry performance
Abstract
The telemetry performance of an arrayed receiver system, including radio losses, is often given by a family of curves giving bit error rate vs bit SNR, with tracking loop SNR at one receiver held constant along each curve. This study shows how to process this information into a more compact, useful format in which the minimal total signal power and optimal carrier suppression, for a given fixed bit error rate, are plotted vs data rate. Examples for baseband-only combining are given. When appropriate dimensionless variables are used for plotting, receiver arrays with different numbers of antennas and different threshold tracking loop bandwidths look much alike, and a universal curve for optimal carrier suppression emerges.
- Publication:
-
The Telecommunications and Data Acquisition Report
- Pub Date:
- November 1982
- Bibcode:
- 1982tdar.nasa..137G
- Keywords:
-
- Antenna Arrays;
- Deep Space Network;
- Performance Prediction;
- Signal Processing;
- Telecommunication;
- Telemetry;
- Communication Networks;
- Data Processing;
- Signal Reception;
- Signal To Noise Ratios;
- Spacecraft Communication;
- Space Communications, Spacecraft Communications, Command and Tracking