论文部分内容阅读
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。
Fourier telescope by changing the location of any two launch telescope to obtain the target of different spatial frequency components collected enough Fourier component signal processing to reconstruct the target image. In order to reduce the system cost and obtain the details of the target as far as possible, a scheme of laser beam emission of a T-type sparse emission array is proposed, and the images reconstructed from four kinds of targets and uniformly spaced transmission arrays are compared. T-type single arm placed 11 launch binoculars, the target continuous extraction of 8 low-frequency information, and then extract three high-frequency components. Compared with the reconstructed images of 11 and 16 uniformly spaced transmit arrays of one arm, we find that the reconstructed image of the transmit array used in this paper is far superior to the uni-arm uniform placement of the same number of transmitters, but the overall imaging capability is slightly Worse than uniform 16, which is also inevitable for sparse emission arrays.