| 数据链路多径传输模型的物理映射方法研究 |
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| 引用本文： | 张巍,张麟兮,郭淑霞,刘宁. 数据链路多径传输模型的物理映射方法研究[J]. 计算机仿真, 2010, 27(4): 28-30,146 |
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| 作者姓名： | 张巍 张麟兮 郭淑霞 刘宁 |
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| 作者单位： | 西北工业大学无人机特种技术国家级重点实验室,陕西,西安,710065 |
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| 摘 要： | 根据无人机数据链路的多径传输要求,针对在传输中电磁波衰落,为保证精度,在微波暗室中建立与之相关的分析模型,采用仿真手段有助于提高无人机数据链的有效性。通过对数据链路的实际传输场景(散射点属性等)以及信道传输模型的多径参数(时延、衰落、多普勒频移)分析,解算出该场景下接收点处的合成功率,并在微波暗室中,依据仪表的衰落仿真机理和暗室环境中求得的合成功率。用两种方法对场景进行仿真,可从中选取一种精度更好的方法进行仿真验证有效性,实现了多径传输链路在微波暗室的准确物理映射。
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| 关 键 词： | 两径模型 物理映射 多径衰落 散射 |
Study on Physical Mapping Method of Data Link Multipath Transmission Model |
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| ZHANG Wei,ZHANG Lin-xi,GUO Shu-xia,LIU Ning. Study on Physical Mapping Method of Data Link Multipath Transmission Model[J]. Computer Simulation, 2010, 27(4): 28-30,146 |
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| Authors: | ZHANG Wei ZHANG Lin-xi GUO Shu-xia LIU Ning |
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| Affiliation: | UAV Specialty Technique Key Laboratory of National Defense Technology/a>;Northwestern Polytechnical University/a>;Xi'an Shanxi 710065/a>;China |
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| Abstract: | According to the requirements of UAV data link multi-path transmission,a related model is established in the microwave anechoic chamber,which is helpful to improve UAV data link effectively.In this paper,actual transmission scenes of data link such as properties of Scattering point and so on,and the multi-path parameters of the channel transmission model,such as delay,fading,Doppler shift,are analyzed The synthetic power of reception point is calculated in this scene.In the anechoic chamber,firstly,two meth... |
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| Keywords: | Two-path model Physical mapped Multi-path fading Scatter |
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