基于OFDM波形的短波通信与超视距雷达集成实验研究  

Experimental Study on Shortwave Communication and OTHR Integrated System Based on OFDM Waveform

作　　者：邵启红[1] 万显荣[1] 张德磊[2] 赵志欣[1] 柯亨玉[1] 

机构地区：[1]武汉大学电子信息学院电波传播实验室,武汉430072 [2]中国电子科技集团公司第二十八研究所,南京210007

出　　处：《雷达学报（中英文）》2012年第4期370-379,共10页Journal of Radars

基　　金：国家自然科学基金资助项目(60971101;41074116;41106156);中央高校基本科研业务费专项资金(2012212020214)资助课题

摘　　要：该文利用武汉大学新近研制的全数字主被动一体化高频地波雷达硬件平台,开展了短波通信与雷达探测的一体化实验研究。结合高频电波特定传播环境,首先从通信角度介绍了正交频分复用(Orthogonal Frequency Division Multiplexing,OFDM)在短波通信中的关键技术,然后从雷达探测角度分析了OFDM参数设计准则及其对超视距雷达探测性能的影响,最后说明了通信信号解调与探测信息获取的处理流程及部分关键技术,并介绍了硬件平台、参数配置及实验结果。结果表明OFDM波形是一种良好的雷达通信一体化信号,该技术对超视距雷达(Over-The-Horizon Radar,OTHR)组网探测研究具有重要意义。Based on the recently developed active-passive multifunctional all-digital HF surface wave radar hardware platform of Wuhan University, an experiment study of integrated technology for shortwave communication and Over-The-Horizon Radar （OTHR） application is carried out. Firstly, from the point of communication are demonstrated the key technologies of orthogonal frequency division multiplexing （Orthogonal Frequency Division Multiplexing, OFDM） in the short-wave communication. Secondly, from the point of radar detection are analyzed OFDM parameters design guidelines and its impact on the over-the-horizon radar detection performance. After the description of some key technologies related to communication signal demodulation and radar signal processing, the configuration parameters of hardware platform and experimental results are provided. The results show that the OFDM wave is done well in radar-communication integration systems, which is of great significance on the netted OTHR detection research.

关 键 词：雷达通信一体化 正交频分复用 短波通信 超视距雷达 

分 类 号：TN958[电子电信—信号与信息处理]