摘要
利用多电台信号提高探测性能是外辐射源雷达的一个重要发展趋势,该文研究了多调频广播(FM)外辐射源雷达高距离分辨率信号综合的相位补偿方法。首先介绍多调频广播信号接收模型,并分析单个FM广播接收信号的相位对高距离分辨率信号综合的影响,然后提出两种相位补偿方法用以自适应调整接收信号相位,从而达到最佳的信号综合效果。该文不仅理论阐述了方法的内在机理,而且仿真验证了在所述相位补偿方法的基础上通过多FM广播信号综合能够成功分辨距离紧邻的目标。
As it is an important development trend of passive radar by using multiple FM radio signals to improve detection performance, this paper presents a study on the phase compensation methods for high range resolution signal synthesis of multi-frequency passive radar. Firstly multi-FM radio received signal model is introduced and the impact of single-FM radio received signal＇s phase on high range resolution signal synthesis is analyzed; then two phase compensation methods that are used to adaptively adjust the received signal＇s phase are proposed to achieve the best signal synthesis effect. This paper not only elaborates in theory the internal mechanism of the methods, but also verifies multi-FM signal synthesis can distinguish adjacent targets based on the methods through simulation.
出处
《电子与信息学报》
EI
CSCD
北大核心
2014年第8期1985-1991,共7页
Journal of Electronics & Information Technology
基金
国家自然科学基金(61331012
61271400)
教育部博士点基金(20120141110077)
中央高校基本科研业务费专项资金(2012212020214)资助课题
