High frequency sky-wave prediction methods and observational data for high-latitude communication circuits
Abstract
High-frequency radio-wave propagation via the ionosphere is important for high-latitude communication systems. A number of methods exist for estimating circuit reliabilities for such systems, but accurate predictions are difficult to achieve because of the extreme spatial and temporal ionospheric variations. The present paper studies the advantages of frequency flexibility and signal relaying for two high-latitude circuits, and compares measured reliabilities with those predicted by three methods in current use. The reliabilities for different times of day, season and degree of ionospheric disturbance are discussed.
- Publication:
-
2nd International Conference on Antennas and Propagation
- Pub Date:
- 1981
- Bibcode:
- 1981icap.conf..258T
- Keywords:
-
- Ionospheric Propagation;
- Performance Prediction;
- Polar Regions;
- Short Wave Radio Transmission;
- Sky Waves;
- Transmission Efficiency;
- Circuit Reliability;
- High Frequencies;
- Radio Communication;
- Reliability Analysis;
- System Effectiveness;
- Communications and Radar