Title :
A method for fieldstrength forecasting in natural terrain
Author :
Lebherz, M. ; Wiesbeck, W. ; Krank, W.
Author_Institution :
Inst. fuer Hockfrequenztech., Elektronik Univ. Karlsruhe, West Germany
Abstract :
A wave propagation model for field-strength and coverage prediction in the VHF/UHF frequency range is presented. The model uses a digital terrain databank and considers multipath propagation. The calculation of the propagation effects are performed by the uniform geometrical theory of diffraction and the appropriate theories, describing the scattering from dielectric rough surfaces. The method for field-strength forecasting is described, and the evaluation of the total receiver field is shown.<>
Keywords :
electromagnetic wave diffraction; electromagnetic wave scattering; radiowave propagation; EM wave scattering; UHF; VHF; coverage prediction; dielectric rough surfaces; digital terrain databank; field strength prediction; fieldstrength forecasting; multipath propagation; natural terrain; propagation effects; radiowave propagation; total receiver field; uniform geometrical theory of diffraction; wave propagation model; Diffraction; Frequency; Optical propagation; Optical scattering; Optical surface waves; Predictive models; Radio spectrum management; Rough surfaces; Surface roughness; Surface topography;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1990. AP-S. Merging Technologies for the 90's. Digest.
Conference_Location :
Dallas, TX, USA
DOI :
10.1109/APS.1990.115478
