Medium wave groundwave propagation model-numerical and experimental results
Abstract
Two computer models incorporating two different groundwave propagation analysis techniques are investigated. The first model is a perturbation technique based on the approach by King Maley and Wait and represents an extention of the previous results to take into account an n-section propagation path. The second model is the integral equation solution for irregular and inhomogeneous terrain based on the formulation by Ott (i,e. PROGRAM WAGNER). The results from the two approaches are compared with each other as well as the results from Millington formula for multisection paths and knife edge diffraction for mountainous regions. Limited amount of experimental data is also compared with computed values for ground wave propagation from Trabzon Broadcast transmitter over the Eastern Anatolian mountain ranges. Computer modelling for the study of ground wave propagation is seen to present an economically advantageous tool in the design of medium frequency (MF) communication links.
- Publication:
-
In AGARD Propagation Aspects of Frequency Sharing
- Pub Date:
- March 1983
- Bibcode:
- 1983pafs.agarQ....F
- Keywords:
-
- Computer Programs;
- Field Strength;
- Ground Wave Propagation;
- Mathematical Models;
- Prediction Analysis Techniques;
- Algorithms;
- Approximation;
- Error Functions;
- Perturbation;
- Signal Transmission;
- Terrain;
- Wave Attenuation;
- Communications and Radar