A novel MoM- and SSPE-based groundwave-propagation field-strength prediction simulator


Akleman F. , SEVGI L.

IEEE ANTENNAS AND PROPAGATION MAGAZINE, cilt.49, ss.69-82, 2007 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 49 Konu: 5
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1109/map.2007.4395296
  • Dergi Adı: IEEE ANTENNAS AND PROPAGATION MAGAZINE
  • Sayfa Sayıları: ss.69-82

Özet

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 GrMoMPE 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.