Hybrid path algorithms of inverse ray-tracing at uhf in a man-made forests

作者：Xu Yun jie; Li Wen bin^*

来源：International Journal of Advancements in Computing Technology, 2012, 4(14): 315-323.

DOI：10.4156/ijact.vol4.issue 14.36

• Dead zones
• Field points
• Hybrid algorithms
• Man-made forests
• PATH algorithm
• Path loss
• Radiofrequency signals
• Tracing method
• UHF
• Wireless sensor

Since the environment in the forest is relatively complicated and there';s a necessity to avoid the dead zone of signal diffraction when laying wireless sensor in the forest, the integration of SBR and UTD is applied to study the impact of 2.4GHz radio-frequency signal on the path loss characteristics in the forest. This paper achieved the ray location from the receive pint to field point by using back-ray tracing method and computed the response electric field relative to each ray by using UTD. Take the poplar planted forest for instance. The measured value and simulated value were compared, finding good consistency between them, which indicates that SBR and UTD can effectively predict the path loss characteristics in the forest.

• 出版日期2012