Measurement of propagation-dependent modulation distortion on wideband directional radio paths
Abstract
The time delay between waves arriving at a receiving antenna via different pathways is determined by evaluating pilot level and noise records. This investigation is relevant to the fact that multipath propagation that often occurs on line-of-sight radio links is frequency-selective, and that it causes level deviations and intermodulation noise in the broad base band of high-capacity fm-fdm systems.
- Publication:
-
Kleinheubacher Berichte
- Pub Date:
- 1975
- Bibcode:
- 1975KlBer..18....9G
- Keywords:
-
- Multipath Transmission;
- Propagation Velocity;
- Signal Distortion;
- Time Lag;
- Wideband Communication;
- Frequency Modulation;
- Group Velocity;
- Intermodulation;
- Noise Measurement;
- Propagation Modes;
- Wave Reflection;
- Communications and Radar