Propagation prediction for hilly terrain using GTD wedge diffraction
Abstract
A terrain sensitive propagation model based on the geometrical theory of diffraction (GTD) modified for finite conductivity and local surface roughness is applied to hilly terrain including multiple diffraction, with the results compared with measurements and the Longley-Rice model. Even though the approach used to calculate multiple-wedge diffraction is known to be invalid in certain situations, the comparison is favorable to the GTD model results.
- Publication:
-
IEEE Transactions on Antennas and Propagation
- Pub Date:
- September 1984
- DOI:
- 10.1109/TAP.1984.1143449
- Bibcode:
- 1984ITAP...32..951L
- Keywords:
-
- Earth Surface;
- Electromagnetic Surface Waves;
- Geometrical Theory Of Diffraction;
- Ground Effect (Communications);
- Surface Roughness Effects;
- Wave Diffraction;
- Diffraction Propagation;
- Performance Prediction;
- Radio Reception;
- Signal Measurement;
- Transmission Loss;
- Wedges;
- Communications and Radar