| 空中目标GPS散射信号对最大距离积的影响 |
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| 引用本文： | 王栟,张其善,杨东凯.空中目标GPS散射信号对最大距离积的影响[J].北京理工大学学报,2009,29(7):644-647. |
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| 作者姓名： | 王栟 张其善 杨东凯 |
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| 作者单位： | 北京航空航天大学,电子信息工程学院,北京,100191;北京航空航天大学,电子信息工程学院,北京,100191;北京航空航天大学,电子信息工程学院,北京,100191 |
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| 基金项目： | 国家自然科学基金资助项目 |
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| 摘 要： | 针对散射信号的强弱直接影响接收效果的问题,通过对GPS散射信号的仿真,探讨了电磁波不同入射角度时的散射特性,比较了电磁波在不同散射截面积、不同信噪比情况下对最大距离积的影响.分析显示前向散射可获得较佳的信号接收效果,通过选取最佳接收卫星可扩大无源探测的范围.
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| 关 键 词： | GPS无源探测 反射信号 散射截面积 |
| 收稿时间： | 9/5/2008 12:00:00 AM |
Impact of GPS Illumination Based Target Scattering Characteristics on Maximum Distance Section |
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| WANG Bing,ZHANG Qi-shan and YANG Dong-kai.Impact of GPS Illumination Based Target Scattering Characteristics on Maximum Distance Section[J].Journal of Beijing Institute of Technology(Natural Science Edition),2009,29(7):644-647. |
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| Authors: | WANG Bing ZHANG Qi-shan and YANG Dong-kai |
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| Institution: | WANG Bing,ZHANG Qi-shan,YANG Dong-kai(School of Electronics , Information Engineering,Beijing University of Aeronautics , Astronautics,Beijing 100191,China) |
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| Abstract: | The strength of scattering signals affects reception directly.Though simulation of scattering signals is studied the object's radar cross sections under different bistatic angles,and compared the influence of different radar cross sections,and the signal-to-noise ratios to the maximum detection range.The analysis showed that forward scattering makes good reception,and GPS passive detection range can be enlarged by selecting the optimum satellites. |
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| Keywords: | GPS passive detection reflection signal radar cross section(RCS) |
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