Abstract
Knowledge of the local groundwave-propagation characteristics is essential in wireless systems. Although Maxwell's equations establish the theoretical background, only a limited number of highly idealized groundwave-propagation problems have mathematically exact and/or approximate solutions. Therefore, semi-analytical/numerical and pure numerical simulation methods are almost the only way to handle realistic groundwave-propagation problems. To a certain extent, numerical simulators should be capable of taking non-flat, penetrable terrain and inhomogeneous atmospheric effects into account. Unfortunately, a generally applicable simulator has not yet appeared; there are many methods that have been developed under different assumptions and approximations, valid in different parameter regimes. It is therefore a challenge to apply these methods to the same physical problems, to do comparisons, and to evaluate numerical results. With all these factors in mind, a new MATLAB-based package OrMoMPE is introduced. It is first validated and calibrated, and then applied to some characteristic groundwave-propagation problems. The introduction of GrMoMPE has made it possible to do direct and accurate comparisons and reliable physical interpretations.
Original language | English |
---|---|
Pages (from-to) | 69-82 |
Number of pages | 14 |
Journal | IEEE Antennas and Propagation Magazine |
Volume | 49 |
Issue number | 5 |
DOIs | |
Publication status | Published - Oct 2007 |
Keywords
- Atmospheric refractivity
- Electromagnetic refraction
- Ground wave propagation
- Land mobile radio propagation factors
- Moment methods
- Parabolic equation
- Path loss prediction
- Radio propagation terrain factors
- Terrain factors