Performance of a coded non-coherent communication system operating through the earth/satellite channel
Abstract
This paper describes the bit error probability performance of a communication system operating in the earth/satellite channel. A channel model for ionospheric scintillation is described in terms of the electron density fluctuation and the channel correlation time. The paper explains how these parameters relate to system performance and discusses the relationship between error-detection and correction (EDAC) coding and a fixed data interleaver configuration. Error probability bounds are described for rapid, moderate, and slowly changing conditions of scintillation. Computer simulation results are presented which demonstrate that an appropriately designed interleaver will broaden the region of improved performance offered by the EDAC coding. Existing programs to which these concepts can be applied are typified by the AFSATCOM system, the Lincoln Experimental Satellite (LES 8/9) system, and various commercial systems operating in the UHF and SHF frequency bands.
- Publication:
-
NTC 1978; National Telecommunications Conference, Volume 1
- Pub Date:
- 1978
- Bibcode:
- 1978ntc.....1...11M
- Keywords:
-
- Data Links;
- Error Correcting Codes;
- Error Detection Codes;
- Ionospheric Propagation;
- Spacecraft Communication;
- Bits;
- Computerized Simulation;
- Scintillation;
- Signal Encoding;
- Signal To Noise Ratios;
- Communications and Radar