Ionospheric effects on radio communication and ranging pulses
Abstract
In applications of all-weather navigation, communication, and search and rescue using satellite-based radio systems it is very important to know what effects the intervening propagation medium has on radio signals. The paper investigates some of these effects produced by the ionosphere. The signals are characterized by means of the recently developed temporal moments. Effects produced by temporal dispersion and scattering from ionospheric irregularities are both taken into account. The importance of various effects is estimated using realistic parameters. The resulting formulas are all algebraic, lending themselves to easy calculations. It is shown that an amplitude-modulated pulse at a carrier frequency of 100 MHz may be stretched up to several hundredfold in width by dispersion and scattering, but such an effect diminishes in importance as the carrier frequency is raised.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- November 1979
- DOI:
- 10.1109/TAP.1979.1142182
- Bibcode:
- 1979ITAP...27..747Y
- Keywords:
-
- All-Weather Air Navigation;
- Ionospheric Propagation;
- Radio Communication;
- Satellite Transmission;
- Transmission Efficiency;
- Wave Dispersion;
- Amplitude Modulation;
- Atmospheric Scattering;
- Carrier Frequencies;
- Ionospheric Disturbances;
- Radio Scattering;
- Rescue Operations;
- Communications and Radar