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 loca-tions.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 1 9.55% by the TD-DORT.The SF-DORT presents a novel approach for spatial power combining for its high efficiency in power combining.
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