Liang G , Bertoni H L . A new approach to 3-D ray tracing for propagation prediction in cities. IEEE Transactions on Antennas and Propagation, 1998,46（6）:853～863
2
Zhengqing Yun , Sungkyun Lim , Iskander M F . An integrated method of ray tracing and genetic algorithm for optimizing coverage in indoor wireless networks. Antennas and Wireless Propagation Letters, 2008（7）:145～148
3
Jacob M , Schon S , Weinbach U , et al. Ray tracing supported precision evaluation for GPS indoor positioning. Navigation and Communication, Hannover,Germany: IEEE Press, 2009:15～22
4
Ran Chen . The development of 3D city model and its applications in urban planning. Proceedings of 19th International Conference on Geoinformatics, Shanghai,China: IEEE Press, 2011:1～5
5
Aguado Agelet F , Formella A , Hernando Rabanos J M , et al. Efficient ray-tracing acceleration techniques for radio propagation modeling. IEEE Transactions on Vehicular Technology, 2000,49（6）:2089～2104
6
Maurer J , Drumm O , Didascalou D . A novel approach in the determination of visible surfaces in 3D vector geometries for ray-optical wave propagation modeling. Proceedings of IEEE Vehicular Technology Conference, Tokyo,Japan: IEEE Press, 2000:1651～1655
