WiFi信号外辐射源雷达双目标检测的研究  

Research into Double-target Detection Using WiFi Passive Radar

作　　者：周明章 姚广涛 孙海信[1] 陈清峰[1] 齐洁[1] 古叶[1] 

机构地区：[1]厦门大学 [2]解放军73111部队 [3]解放军73653部队

出　　处：《舰船电子对抗》2016年第2期1-4,33,共5页Shipboard Electronic Countermeasure

基　　金：国家自然科学基金;项目编号:61471309;福建省自然科学基金;项目编号:2013J01258

摘　　要：随着WiFi、WiMax信号的广泛覆盖,基于正交频分复用(OFDM)信号的外辐射源雷达技术应用得以广泛发展。通过论述OFDM技术的特点以及两大标准802.11和802.16,论证了WiFi雷达技术的可行性,并进一步将信号识别技术运用到外辐射源雷达目标检测中。同时研究了不同情形下的模糊函数效果,经过对比,最终选取直达波与混合波的模糊函数构建双目标定位模型进行仿真,成功得到了目标所在位置,证实了WiFi信号作为雷达辐射源进行多目标定位的理论可行性。Along with the wide coverage of WiFi signal and WiMax signal,passive radar technology based on orthogonal frequency division multiplexing（OFDM）has been widely developed.This article demonstrates the feasibility of WiFi passive radar technology through discussing the characteristics of OFDM technology and two standards：802.11 and 802.16,and further applies signal identification technology into target detection of passive radar,at the same time studies the effect of ambiguity function in different situations.Through comparison,the ambiguity function of direct wave and mixed wave is selected to construct a double-target location model and the simulation is performed,then the target location is succeessly gained,which confirms the theoretic feasibility of multi-target location using WiFi signal as radar emitter.

关 键 词：信号外辐射源雷达 正交频分复用 序列相关 模糊函数 遍历 

分 类 号：TN971[电子电信—信号与信息处理]