Abstract In order to improve the reliability of the aircraft telemetry communication in complex attitude conditions, a system model with concatenated LPDC space-time codes and a 2 × 1 antenna system is established. A channel parameter estimation method is introduced, and then a soft space-time decoding algorithm based on channel parameter estimation is proposed. The decoding algorithm gives soft output information to the LDPC decoder which can take full advantage of LDPC coding gain. Simulation result shows that there would be a poor error performance without space-time coding while the phase difference of signal from two antennas is in the vicinity of π. But with space-time coding, the reliability of communication in any phase difference could be guaranteed.
Telemetry Communication in Complex Attitude Conditions Based on Space-Time Coding
2017-07-27
10 pages
Article/Chapter (Book)
Electronic Resource
English
MULTISIGNAL CODING FOR SPACE TELEMETRY
NTRS | 1962
|Telemetry Channel Coding Standard
NTIS | 1989