A Model of GSM Based Passive Radar Signal and Ambiguity Function Features

YANG Yun-fu; TAO Ran; WANG Yue; ZHAO Xing-hao

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A Model of GSM Based Passive Radar Signal and Ambiguity Function Features

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- A Model of GSM Based Passive Radar Signal and Ambiguity Function Features
- Acta Electronica Sinica Vol. 33, Issue 6, Pages: 1048-1052(2005)
- 作者机构：
  
  1. 北京理工大学电子工程系,北京,100081
  2. 解放军炮兵学院二系,安徽,合肥,230031
  3. 北京理工大学电子工程系北京,100081
  4. 解放军炮兵学院二系安徽合肥,230031
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN95
- Published：2005
- 稿件说明：
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YANG Yun-fu, TAO Ran, WANG Yue, et al. A Model of GSM Based Passive Radar Signal and Ambiguity Function Features[J]. Acta Electronica Sinica, 2005, 33(6): 1048-1052.
DOI：

YANG Yun-fu, TAO Ran, WANG Yue, et al. A Model of GSM Based Passive Radar Signal and Ambiguity Function Features[J]. Acta Electronica Sinica, 2005, 33(6): 1048-1052. DOI：

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.

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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