Işın İzleme Tekniğinin Radyo Dalga Yayılım Modellerinde Kullanılması
Year 2015,
Volume: 15 Issue: 2, 1 - 6, 30.08.2015
Doruk Ayberkin
,
Mehmet Barış Tabakcıoğlu
Abstract
Daha güvenilir, zaman açısından verimli ve kesinliği yüksek elektromanyetik dalga şiddeti kestirimi
yapmak için birçok yayılım modeli geliştirilmiştir. Bu modeller nümerik ve ışın izleme tekniği tabanlı
olmak üzere iki kısımdır. Nümerik modellerin hesaplama zamanı ve kesinliği yüksektir. Buna karşın ışın
izleme tekniği tabanlı modellerin hesaplama süresi daha kısadır. Vericiden çıkan ve alıcıda sonlanan tüm
ışınların tespit edilmesi alıcı üzerindeki bağıl yol kaybının doğru hesaplanması için çok önemlidir. Bu
çalışmada kısaca bazı yayılım modelleri hakkında bilgi verildikten sonra ışın izleme tekniği yazılımı
açıklanacaktır ve karşılaştırmalar yapılacaktır.
References
- Andersen, J.B., 1994. Transition zone diffraction by multiple edges. IEE Proceedings - Microwaves, Antennas and Propagation, 141, 5, 382-384.
- Andersen, J.B., 1997. UTD multiple edge transition zone diffraction. IEEE Transactions on Antennas and Propagation, 45, 7, 1093-1097.
- Bucci, O.M., Capozzoli, A., Curcio, C. and Delia, G., 2003. The experimental validation of a technique to find the convex hull of the scattering systems from field data. IEEE APS Procedings, 539-542.
- Chung, H.K. and Bertoni, H.L., 2003. Application of Isolated Diffraction Edge (IDE) Method for Urban Microwave Path Loss Prediction. IEEE Vehicular Technology Conference, 1, 205-209.
- Kara, A., Bertoni, H.L. and Yazgan, E., 2003. Limit and application range of the slope diffraction method for wireless communications, IEEE Transactions on Antennas and Propagation, 51, 9, 2512-2514.
- Koutitas, G. and Tzaras, C., 2006. A Slope UTD Solution for a Cascade of Multishaped Canonical Objects IEEE Transactions on Antennas and Propagation, 54, 10, 2969-2976.
- Koutitas, G. and Tzaras, C., 2005. A new UTD formulation for multiple cylindrical diffraction. IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, 45-48.
- Kouyoumjian, R.G and Pathak, P., 1974. A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface. IEE Procedings, 62, 1448-1461.
- Leandro, J-L, and Jorge, L.R., 2002. A UTD-PO solution for diffraction of plane waves by an array of perfectly conducting wedges. IEEE Transactions on Antennas and Propagation, 50, 9, 1207-1211.
- Luebbers, R.J., 1984. Finite conductivity uniform GTD versus knife edge diffraction in prediction of propagation path loss. IEEE Transactions on Antennas and Propagation, 32, 1, 70-76.
- Rizk, K., Valenzuela, R., Chizhik, D. and Gardiol, F., 1998. Application of the slope diffraction method for urban microwave propagation prediction, IEEE Vehicular Technology Conference, 2, 1150-1155.
- Tabakcıoğlu, M.B. ve Cansız A., 2014. Çoklu kırınımlar içeren senaryolar için elektromanyetik dalga yayılım modelleri, Uludağ University Journal of the Faculty of Engineering and Architecture, 19, 1, 37-46.
- Tabakcıoğlu, M.B. and Kara, A., 2008. Discussions of various UTD and PO solutions for multiple edge diffractions in urban radio propagation modeling. Electromagnetic Wave Scattering Workshop. 11, 1-6.
- Tabakcıoğlu, M.B. and Kara, A., 2009. Comparison of improved slope uniform theory of diffraction with some geometrical optic and physical optic methods for multiple building diffractions. Electromagnetics, 29, 1, 303-320.
- Tabakcıoğlu, M.B. and Kara, A., 2010. Improvements on Slope Electromagnetics, 30, 3, 285-296. for Multiple Wedges.
- Tabakcıoğlu, M.B. and Cansız, A., 2013. Application of S- UTD-CH Model into Multiple Diffraction Scenarios. International Journal of Antennas and Propagation, 2013, 1-5.
- Tabakcıoğlu, M.B. ve Ayberkin, A., 2014. Çoklu kırınım içeren senaryolarda kullanılan ışın izleme tekniği algoritması Konferansları. Akademik Bilişim
- Tzaras, C. and Saunders, S.R., 2001. An improved heuristic UTD solution for multiple-edge transition zone diffraction, IEEE Transactions on Antennas and Propagation, 49, 12, 1678-1682. İnternet Kaynakları
- http://en.wikipedia.org/wiki/Hata_model_for_urban
- _areas, (19.02.2015)
Year 2015,
Volume: 15 Issue: 2, 1 - 6, 30.08.2015
Doruk Ayberkin
,
Mehmet Barış Tabakcıoğlu
References
- Andersen, J.B., 1994. Transition zone diffraction by multiple edges. IEE Proceedings - Microwaves, Antennas and Propagation, 141, 5, 382-384.
- Andersen, J.B., 1997. UTD multiple edge transition zone diffraction. IEEE Transactions on Antennas and Propagation, 45, 7, 1093-1097.
- Bucci, O.M., Capozzoli, A., Curcio, C. and Delia, G., 2003. The experimental validation of a technique to find the convex hull of the scattering systems from field data. IEEE APS Procedings, 539-542.
- Chung, H.K. and Bertoni, H.L., 2003. Application of Isolated Diffraction Edge (IDE) Method for Urban Microwave Path Loss Prediction. IEEE Vehicular Technology Conference, 1, 205-209.
- Kara, A., Bertoni, H.L. and Yazgan, E., 2003. Limit and application range of the slope diffraction method for wireless communications, IEEE Transactions on Antennas and Propagation, 51, 9, 2512-2514.
- Koutitas, G. and Tzaras, C., 2006. A Slope UTD Solution for a Cascade of Multishaped Canonical Objects IEEE Transactions on Antennas and Propagation, 54, 10, 2969-2976.
- Koutitas, G. and Tzaras, C., 2005. A new UTD formulation for multiple cylindrical diffraction. IEEE International Symposium on Microwave, Antenna, Propagation and EMC Technologies for Wireless Communications Proceedings, 45-48.
- Kouyoumjian, R.G and Pathak, P., 1974. A uniform geometrical theory of diffraction for an edge in a perfectly conducting surface. IEE Procedings, 62, 1448-1461.
- Leandro, J-L, and Jorge, L.R., 2002. A UTD-PO solution for diffraction of plane waves by an array of perfectly conducting wedges. IEEE Transactions on Antennas and Propagation, 50, 9, 1207-1211.
- Luebbers, R.J., 1984. Finite conductivity uniform GTD versus knife edge diffraction in prediction of propagation path loss. IEEE Transactions on Antennas and Propagation, 32, 1, 70-76.
- Rizk, K., Valenzuela, R., Chizhik, D. and Gardiol, F., 1998. Application of the slope diffraction method for urban microwave propagation prediction, IEEE Vehicular Technology Conference, 2, 1150-1155.
- Tabakcıoğlu, M.B. ve Cansız A., 2014. Çoklu kırınımlar içeren senaryolar için elektromanyetik dalga yayılım modelleri, Uludağ University Journal of the Faculty of Engineering and Architecture, 19, 1, 37-46.
- Tabakcıoğlu, M.B. and Kara, A., 2008. Discussions of various UTD and PO solutions for multiple edge diffractions in urban radio propagation modeling. Electromagnetic Wave Scattering Workshop. 11, 1-6.
- Tabakcıoğlu, M.B. and Kara, A., 2009. Comparison of improved slope uniform theory of diffraction with some geometrical optic and physical optic methods for multiple building diffractions. Electromagnetics, 29, 1, 303-320.
- Tabakcıoğlu, M.B. and Kara, A., 2010. Improvements on Slope Electromagnetics, 30, 3, 285-296. for Multiple Wedges.
- Tabakcıoğlu, M.B. and Cansız, A., 2013. Application of S- UTD-CH Model into Multiple Diffraction Scenarios. International Journal of Antennas and Propagation, 2013, 1-5.
- Tabakcıoğlu, M.B. ve Ayberkin, A., 2014. Çoklu kırınım içeren senaryolarda kullanılan ışın izleme tekniği algoritması Konferansları. Akademik Bilişim
- Tzaras, C. and Saunders, S.R., 2001. An improved heuristic UTD solution for multiple-edge transition zone diffraction, IEEE Transactions on Antennas and Propagation, 49, 12, 1678-1682. İnternet Kaynakları
- http://en.wikipedia.org/wiki/Hata_model_for_urban
- _areas, (19.02.2015)