Simulation and modeling of the deep space receiver interaction with channel decoding performance
Abstract
Computer models were developed in an attempt to reproduce the sequential decoder computation curve of Deep Space Network (DSN) ground station receivers, by simulation of the binary data output of the Gaussian channel with the carrier phaselock loop and the subcarrier demodulator assembly. Simulations were run at bit rates equal to the powers of 2 from 8 to 2,048, and agreement with DSN data was generally good above 32 bits per second. Simulation results at data rates of 8, 16, and 32 bits per second did not closely match experimental data. This simulation provides a more accurate prediction of DSN computation lengths than either current mathematical models or simulations without both the subcarrier demodulator and carrier loop.
 Publication:

NASA STI/Recon Technical Report N
 Pub Date:
 July 1976
 Bibcode:
 1976STIN...7628267J
 Keywords:

 Computerized Simulation;
 Decoding;
 Deep Space Network;
 Radio Receivers;
 Binary Data;
 Carrier Waves;
 Data Processing;
 Demodulators;
 Ground Stations;
 Mathematical Models;
 Phase Locked Systems;
 Rates (Per Time);
 Space Communications, Spacecraft Communications, Command and Tracking