【摘要】 基于全球移动通信系统(GSM)蜂窝网信号的外辐射源系统,提出了一种利用GSM蜂窝网基站发射的信号实现对运动目标检测的外辐射源系统的方案。首先对GSM基站信号参数、信道特点、模糊函数进行了分析,然后给出了一个试验系统的组成及其处理方法,主要包括自适应直达波/杂波对消、相干检测及参数提取方法等,仿真分析了2种场景下的动目标检测及参数提取结果,验证了利用GSM信号进行目标探测体制的可行性。更多还原

【Abstract】 For passive system based on global system of mobile communication(GSM),a moving target detection(MTD) method using signal transmitted by GSM base stations is presented.At first,GSM signal parameters,channel characteristic and ambiguity function is analyzed;and then,the composing of a test system and disposal method is given,the method includes adaptive drect wave/clutter cancellation,coherent detection and parameters distilling.Finally the result of MTD and parameters distilling on the two scenes is given by the simulation analyse,the effectiveness of the proposed method is verified.更多还原