| 一种GSM无源雷达信号模型及模糊函数性质研究 |
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| 引用本文： | 杨运甫,陶然,王越,赵兴浩.一种GSM无源雷达信号模型及模糊函数性质研究[J].电子学报,2005,33(6):1048-1052. |
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| 作者姓名： | 杨运甫 陶然 王越 赵兴浩 |
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| 作者单位： | 北京理工大学电子工程系,北京,100081;解放军炮兵学院二系,安徽,合肥,230031;北京理工大学电子工程系,北京,100081 |
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| 基金项目： | 国家自然科学基金,高等学校优秀青年教师教学科研奖励计划 |
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| 摘 要： | GSM无源雷达以广泛使用的数字蜂窝通信网GSM基站发射的无线电信号作探测源.本文提出了一种能方便地描述GSM信号的多突发映射模型,建立了GSM信号多突发映射结构图,提供了多突发映射方法,用一个矩阵多次映射可获得多突发的GSM信号数据码.然后在一个突发内,用合成法产生GMSK调制相位,从而得到GSM信号.另外通过观察大量的GSM信号模糊函数,发现GSM信号模糊函数在数据长度较长(多于一帧)时具有单峰性,即这时的GSM信号模糊函数属图钉型.对这个性质进行了多方面探讨说明,并用蒙特卡罗法进行了试验验证.
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| 关 键 词： | GSM 无源雷达 信号模型 图钉型模糊函数 |
| 文章编号： | 0372-2112(2005)06-1048-05 |
| 收稿时间： | 2004-08-02 |
A Model of GSM Based Passive Radar Signal and Ambiguity Function Features |
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| YANG Yun-fu,TAO Ran,WANG Yue,ZHAO Xing-hao.A Model of GSM Based Passive Radar Signal and Ambiguity Function Features[J].Acta Electronica Sinica,2005,33(6):1048-1052. |
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| Authors: | YANG Yun-fu TAO Ran WANG Yue ZHAO Xing-hao |
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| Affiliation: | 1. Dept.of Electronic Engineering,Beijing Institute of Technology,Beijing 100081,China;2. Dept.2,Artillery Academy of PLA,Hefei,Anhui 230031,China |
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| Abstract: | GSM based passive radars employ the GSM signal transmitted by GSM base stations as an illuminator.A model of GSM signal,called Multi-Burst Mapping Model (MBMM),which can be convenient to depict the GSM signal data stream,is presented.The mapping structures of multi-burst GSM signal are constructed,and the mapping method is offered.With it,the multi-burst GSM signal data stream can be obtained.In a burst,the whole GMSK modeling phase is generated by compound method,thus GSM signal can be simulated.In addition,many of GSM signal ambiguity functions are observed and a feature of them is found:while the length of data is long enough (more than one frame),they belong to "thumbtack" functions.This feature is investigated in many aspects and validated via Monte Carlo method. |
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| Keywords: | GSM |
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