| A ground reflection model for I-UWB signal propagation |
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| 作者姓名： | 汪洋 张钦宇 张乃通 刘法 张继良 |
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| 作者单位： | Communication Engineering Research Center Harbin Institute of Technology Shenzhen Graduate School，Communication Engineering Research Center，Harbin Institute of Technology Shenzhen Graduate School，Communication Research Center，Harbin Institute of Technology，Communication Engineering Research Center，Harbin Institute of Technology Shenzhen Graduate School，Communication Engineering Research Center，Harbin Institute of Technology Shenzhen Graduate School，Shenzhen 518055，China，Shenzhen 518055，China，Harbin 150001，China，Shenzhen 518055，China，Shenzhen 518055，China |
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| 摘 要： | Impulse systems do not undergo the multi-path destructive interference that manifests itself as Rayleigh fading prevalent in continuous wave systems, but rather show up as delayed replications of the direct impulse. In this paper, the model for impulse signals propagation over a plane earth is proposed. The condition for direct pulse and its replication overlapping each other was investigated. The model described here also takes into account the polarization of the transmission signals and the reflection coefficient of the plane, which was always neglected by previous approaches. The simulation result shows that the path loss can be characterized as 3 zones with different path loss exponents as the distance between transmitter and receiver （T-R） increasing.
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| 关 键 词： | 移动通信 反射模型 反射信号 脉冲体系 |
A ground reflection model for I-UWB signal propagation |
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| WANG Yang,ZHANG Qin-yu,ZHANG Nai-tong,LIU Fa,ZHANG Ji-liang.A ground reflection model for I-UWB signal propagation[J].Journal of Harbin Institute of Technology,2008,15(1):23-26. |
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| Authors: | WANG Yang ZHANG Qin-yu ZHANG Nai-tong LIU Fa ZHANG Ji-liang |
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| Affiliation: | 1. Communication Engineering Research Center, Harbin Institute of Technology Shenzhen Graduate School, Shenzhen 518055, China
2. Communication Research Center, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | Impulse systems do not undergo the multi-path destructive interference that manifests itself as Ray-leigh fading prevalent in continuous wave systems, but rather show up as delayed replications of the direct im-pulse. In this paper, the model for impulse signals propagation over a plane earth is proposed. The condition for direct pulse and its replication overlapping each other was investigated. The model described here also takes in-to account the polarization of the transmission signals and the reflection coefficient of the plane, which was al-ways neglected by previous approaches. The simulation result shows that the path loss can be characterized as 3 zones with different path loss exponents as the distance between transmitter and receiver (T-R) increasing. |
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| Keywords: | UWB path loss 2-ray model multipath |
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