论文标题
通过反射傅里叶ptychography可见遥感的相干合成孔径成像
Coherent synthetic aperture imaging for visible remote sensing via reflective Fourier ptychography
论文作者
论文摘要
合成孔径雷达（SAR）可以用天线和微波炉测量相位，由于相位丢失，无法直接扩展到可见光成像。在这封信中，我们通过反射傅立叶Ptychography（FP）报道了一种有效的遥控感，称为连贯的合成孔径成像（CSAI），达到高分辨率，广泛的视野（FOV）和相恢复。据报道，用激光扫描和无限物体的准直仪据报道了概念验证实验。光滑和粗糙的物体都经过测试，空间分辨率从15.6 um增加到3.48 um，倍数为4.5。斑点噪声可能会意外抑制FP。同时，CSAI方法可以替换自适应光学元件，以通过一步反卷积来应对大气湍流和光学系统引起的畸变。
Synthetic aperture radar (SAR) can measure the phase with antenna and microwave, which cannot be directly extended to visible light imaging due to phase lost. In this letter, we reported an active remote sensing with visible light via reflective Fourier ptychography (FP), termed coherent synthetic aperture imaging (CSAI), achieving high resolution, wide field-of-view (FOV) and phase recovery. A proof-of-concept experiment was reported with laser scanning and a collimator for the infinite object. Both smooth and rough objects are tested, and the spatial resolution increased from 15.6 um to 3.48 um with a factor of 4.5. The speckle noise can be suppressed by FP unexpectedly. Meanwhile, the CSAI method may replace the adaptive optics to tackle the aberration induced from atmospheric turbulence and optical system by one-step deconvolution.
