摘要
采用天线组阵辐射的方式实现空间功率合成,是获取高功率微波的有效途径。利用奇异值分解空频矩阵获取时间反演后向传输信号,天线阵列再次发射这些信号,能完成目标探测,同时在目标位置处实现空间功率合成。基于相同的峰值发射功率,频率提高后的空频时间反演方法合成功率达到了理想合成功率的87.39%;而TD-DORT方法仅为理想合成功率的19.55%。频率提高后的空频时间反演方法具有功率合成方面的高效性,探测目标的同时在目标位置处合成高功率微波,为空间功率合成提供了一种新的方法与途径。
Basing on the space-frequency time-reversal technology,the paper presents a novel spatial power combining approach.Applying singular value decomposition to the space-frequency matrix,the time-reversal back-propagating signals are obtained.These signals are retransmitted by the antenna array,which can both find the targets and combine power at their locations.With the same retransmitted peak power,the combined power by the SF-DORT with increased frequency reaches 87.39%of the ideal combined power,in contrast to only 19.55% by the TD-DORT.The SF-DORT presents a novel approach for spatial power combining for its high efficiency in power combining.
出处
《强激光与粒子束》
EI
CAS
CSCD
北大核心
2016年第11期79-82,共4页
High Power Laser and Particle Beams
基金
国家自然科学基金委和中国工程物理研究院联合基金项目(U1330109)
