[54] PREDICTION SYSTEM FOR RF POWER DISTRIBUTION
[75] Inventors: Farid Feisullin, Chatham; Bruce
Naylor, Bedminster; Ajay Raukumar,
New Providence; Lois Rogers, S.
Orange, all ol N.J.
[73] Assignee: Lucent Technologies Inc., Murray Hill, N.J.
[21] Appl. No.: 08/838,221 [22] Filed: Apr. 3, 1997
Related U.S. Application Data
[60] Provisional application No. 60/021,842, Jul. 16, 1996.
[51] Int. CI. G06F 17/50
[52] U.S. CI 395/500.23; 342/359; 395/500.39;
455/506
[58] Field of Search 364/578; 395/500;
342/359; 343/703; 455/52.3
[56] References Cited
U.S. PATENT DOCUMENTS
5,313,568 5/1994 Wallace et al 395/126
5,491,644 2/1996 Pickering et al 364/514 R
5,574,466 11/1996 Reed et al 342/359
OTHER PUBLICATIONS
Raymond J. Luebbers, Propagation for Hilly Terrain Using Wedge Diffraction, in IEEE Transactions on Antennas and Propagation, vol. Ap.-32, No. 9, (Sep. 1984).
A method for simulating RF energy distribution comprises obtaining a binary tree representation ol a geometric environment in three-dimensions and forming a 3-D geometric database model therefrom, obtaining one or more specified receive locations within the 3-D geometric database model where RF energy distribution is desirable, simulating the propagation ol an RF signal within the geometric database model, the RF signal being represented as a beam having magnitude and direction, the propagation including querying the database model to trace the beam in the geometric environment; and, determining one or more intersections ol the traced beam with one or more receive locations to determine RF energy distribution at the receive locations.
30 Claims, 7 Drawing Sheets
