| 一种新型时域反射系数近似方法 |
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| 引用本文： | 刘芫健, 张业荣, 朱洪波, 曹伟. 一种新型时域反射系数近似方法[J]. 电波科学学报, 2012, 27(1): 73-77. |
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| 作者姓名： | 刘芫健 张业荣 朱洪波 曹伟 |
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| 作者单位： | 南京邮电大学电子科学与工程学院, 江苏南京 210003 |
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| 基金项目： | 国家自然科学基金(60671065);973计划资助(2007CB310603);江苏省高校自然科学基金项目(11KJB510015) |
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| 摘 要： | 提出一种新型时域反射系数渐进公式,该公式形式简单且不受截断误差影响,解析式完备且结果精确,可有效地提高时域射线跟踪法的预测精度。用新方法对室内超宽带信号的平均功率延迟分布进行了预测,仿真结果和公开发表的文献结果相比,一致性良好。研究工作证明:新型时域射线跟踪法是预测超宽带信号传播特性的一种有效方法。
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| 关 键 词： | 时域射线跟踪法 反射系数 渐进公式 超宽带 |
| 收稿时间： | 2010-09-08 |
A novel approximate technique of time-domain reflection coefficient |
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| LIU Yuan-jian, ZHANG Ye-rong, ZHU Hong-bo, CAO Wei. A novel approximate technique of time-domain reflection coefficient[J]. CHINESE JOURNAL OF RADIO SCIENCE, 2012, 27(1): 73-77. |
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| Authors: | LIU Yuan-jian ZHANG Ye-rong ZHU Hong-bo CAO Wei |
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| Affiliation: | College of Electronical Science and Engineering, Nanjing University of Posts and Telecoms., Nanjing Jiangsu 210003, China |
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| Abstract: | A novel approximate formula of time-domain reflection coefficient is put forward.The form is simple and its precision is not affected by the truncation errors.In addition,the form has the self-contained analytic formula and exact result.The average power delay distribution is predicted by this method for indoor ultra-wideband(UWB) signal.Good agreement is achieved between the simulated results and the published results.It is proved that the novel method of time-domain ray tracing is effective to predict the propagation characteristics of UWB signal. |
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| Keywords: | method of time-domain ray tracing reflection coefficient approximate formula UWB |
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