HF-UHF Propagation Prediction Over Rough Terrain
Abstract
In this final report a summary of our activities with regard to HF-UHF propagation prediction over rough terrain is provided. Our research activities in the HF-UHF Propagation Prediction can be categorized into three categories: (1) development of a theoretical method to predict the field propagation from a small dipole over a half-space dielectric, (2) Numerical Wavelet-based Method of Moments approach to predict the scattering from random rough surfaces, and (3) numerical Iterative Physical Optics technique to predict the scattering from random rough surfaces that have low to moderate rms slopes. The accurate prediction of radio wave coverage at HF-UHF frequencies over irregular terrain features is of importance in the design and development of low-cost, low power communications system. The terrain effects consist of multipath, diffraction, scattering and depolarization of the electromagnetic wave. Current methods of prediction are overly simplistic and tend to neglect phenomena which have a significant effect on radio wave propagation modeling. We investigated a number of techniques necessary to predict accurately the propagation over rough terrain in the HF-UHF range accurately.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 26, 1999
- Accession Number
- ADA370086
Entities
People
- Daniel Zahn
- Kamal Sarabandi
Organizations
- University of Michigan