Title :
Effect of obstacles on VHF TV signal propagation
Author :
Prasad, M.V.S.N. ; Sain, Mangal ; Reddy, B.M.
fDate :
9/1/1990 12:00:00 AM
Abstract :
Field strength data from 13 single-knife-edge diffraction propagation paths were collected over the Indian subcontinent. The suitability of different prediction methods is compared. It is concluded that in urban regions, urban loss should be added to the predicted path loss to explain the observed loss, whereas in the rural/semiurban areas, Epstein-Peterson, Deygout, and CCIR methods predict path losses, which are in close agreement with the observed values
Keywords :
electromagnetic wave diffraction; mobile communication systems; radiowave propagation; television broadcasting; CCIR method; Deygout method; Epstein-Peterson method; Indian subcontinent; VHF TV signal propagation; mobile radio; observed loss; predicted path loss; rural/semiurban areas; single-knife-edge diffraction propagation paths; urban loss; urban regions; Diffraction; Earth; Land mobile radio; Prediction methods; Propagation losses; Radio broadcasting; Radio transmitters; Receivers; TV broadcasting; Vegetation mapping;
Journal_Title :
Broadcasting, IEEE Transactions on
