An Accurate and Efficient 3-D Shooting-and- Bouncing-Polygon Ray Tracer for Radio Propagation Modeling
| Autor: | Boon-Kuan Chung, C. H. Teh, Eng Hock Lim |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Diffraction 010504 meteorology & atmospheric sciences Astrophysics::High Energy Astrophysical Phenomena Computation 020206 networking & telecommunications 02 engineering and technology 01 natural sciences Computational physics Radio propagation model 0202 electrical engineering electronic engineering information engineering Ray tracing (graphics) Electrical and Electronic Engineering Space partitioning 0105 earth and related environmental sciences Street canyon |
| Zdroj: | IEEE Transactions on Antennas and Propagation. 66:7244-7254 |
| ISSN: | 1558-2221 0018-926X |
| Popis: | This paper describes two important improvements to a 3-D shooting-and-bouncing-polygon (SBP) ray tracer for radio propagation modeling. It introduces a way to trace diffracted–reflected (D–R) rays in the SBP framework and improves SBP accuracy when the D–R rays play an important role. It also introduces a better space partitioning scheme for the use with SBP and improves the SBP’s computation efficiency by more than $10\times $ in some applications. The numerical results are compared against published measurements and 3-D full-wave solutions. They show that the improved SBP ray tracer is a good multipurpose 3-D ray tracer which can be used to simulate urban street canyon (without double over-rooftop diffraction), indoor, and tunnel propagation environments. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|