【作者】 秦军振；

【导师】 王俊；

【作者基本信息】 西安电子科技大学 ， 信号与信息处理， 2009， 硕士

【摘要】 本文首先介绍了调频广播(FM)信号的原理和特性,无源双(多)基地雷达和无线电测向(DF)的基本概念,然后详细讨论了如何利用调频广播信号对动目标进行测向和定位。本文提出了一种新的基于外辐射源的测向算法,并在此基础上提出了一种基于调频广播信号的外辐射源雷达系统信号处理方案。本文中的测向算法使用艾德考克(Adcock)天线,该天线体积小、重量轻,大大提高了系统的机动性能,另外该算法属于相位测角法,测量精度高于比幅测向。定位模型采用的是单站定位模型,对布站要求比较低。最后,通过外场实测数据对测向算法以及整个信号处理方案进行验证。更多还原

【Abstract】 Firstly a brief introduction of characteristics of FM broadcast signal as well as basic conception of passive Bistatic/Multistatic radar system and radio direction find(DF) is given in this paper. Then a particular discussion about how to find the direction and location of a moving target in passive radar system is presented in this paper. A novel DF algorithm and a signal processing scheme based on FM broadcast signal are proposed. The DF algorithm in this paper makes use of Adcock antenna, which is small size and light weight, improving the maneuverability of the whole system. On the other hand, this algorithm belongs to Measuring-angle by-phase which is much precise than Measuring-angle-by- amplitude. Location method is base on single fixed station. The location of station required by this method can be easily fulfilled. Finally, the effectiveness of the DF and the whole signal processing scheme is verified by real data processing.更多还原