Characterization of a VHF air-ground channel
Abstract
The report describes a particular radio channel of the type proposed for use by the VHF digital data link system. It is air-ground, has a narrow bandwidth, and uses frequencies near 120 MHz. Among the topics discussed are general signal levels, short-term and long-term variability, noise, multipath spread, and Doppler shifts. A bibliography is included which stresses the available data for this and similar channels.
- Publication:
-
NASA STI/Recon Technical Report N
- Pub Date:
- October 1974
- Bibcode:
- 1974STIN...7613350H
- Keywords:
-
- Channels (Data Transmission);
- Ground-Air-Ground Communication;
- Radio Communication;
- Very High Frequencies;
- Data Links;
- Digital Techniques;
- Radio Frequency Interference;
- Radio Transmission;
- Transmission Loss;
- Communications and Radar