CAJ | 학술논문

傅里叶望远镜通过改变任意两个发射望远镜的位置来获取目标不同的空间频率分量，采集足够多的傅里叶分量值后进行信号处理即可重构目标图像。为了降低系统成本且尽量获得目标的细节信息，提出了一种T型稀疏发射阵列的激光束发射配置方案，对4种目标与均匀间隔发射阵列重构的图像进行了对比研究。 T型单臂放置11个发射望远镜，连续抽取目标的8个低频信息，再抽取3个高频分量。通过与单臂11和16个的均匀间隔发射阵列的重构图像进行对比发现：文中采用的发射阵列重构图像远优于同等数量发射器个数的单臂均匀放置方式，但整体成像能力略差于均匀16，这也是稀疏发射阵列不可避免的。
부리협망원경통과개변임의량개발사망원경적위치래획취목표불동적공간빈솔분량，채집족구다적부리협분량치후진행신호처리즉가중구목표도상。위료강저계통성본차진량획득목표적세절신식，제출료일충T형희소발사진렬적격광속발사배치방안，대4충목표여균균간격발사진렬중구적도상진행료대비연구。 T형단비방치11개발사망원경，련속추취목표적8개저빈신식，재추취3개고빈분량。통과여단비11화16개적균균간격발사진렬적중구도상진행대비발현：문중채용적발사진렬중구도상원우우동등수량발사기개수적단비균균방치방식，단정체성상능력략차우균균16，저야시희소발사진렬불가피면적。
Fourier telescopy is an unconvention al imaging technique that combines the advantages of the laser active lighting and synthetic aperture techniques. The different spatial frequency components of target are received by changing the location of any of the two launch telescopes. After collected a sufficient number of Fourier component values, target image can be obtained by signal processing. To reduce system cost and try to get the details of the target, in this paper, a configuration program was proposed which T-sparse emitter array of laser beam. A comparative study of four kinds of targets and evenly spaced emitter array reconstructed image. The number of each arm of T type placed launch telescopes was 11. First, the eight low-frequency information of target was gotten continuously. Then three high-frequency components were extracted. By comparison with the single arm 11 and 16 of evenly spaced emitter array reconstructed image: the emission array that we used reconstructed image is much better than the same number of the number of evenly launch array, compared with configuration of homogeneous 16, overall imaging capability slightly difference, which is inevitable.