Imaging process and signal-to-noise ratio improvement of enhanced self-heterodyne synthetic aperture imaging ladar

Guo Zhang; Jianfeng Sun; Yu Zhou; Zhiyong Lu; Guangyuan Li; Guangyu Cai; Mengmeng Xu; Bo Zhang; Chenzhe Lao; Hongyu He; Liren Liu

doi:10.3788/COL201715.102801

Journals >Chinese Optics Letters >Volume 15 >Issue 10 >Page 102801 > Article

Chinese Optics Letters
Vol. 15, Issue 10, 102801 (2017)

Imaging process and signal-to-noise ratio improvement of enhanced self-heterodyne synthetic aperture imaging ladar

Guo Zhang^1、2, Jianfeng Sun^1、*, Yu Zhou¹, Zhiyong Lu¹, Guangyuan Li^1、2, Guangyu Cai^1、2, Mengmeng Xu^1、2, Bo Zhang^1、2, Chenzhe Lao^1、2, Hongyu He^1、2, and Liren Liu¹

Author Affiliations

¹Key Laboratory of Space Laser Communication and Detection Technology, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Science, Shanghai 201800, China

²University of Chinese Academy of Sciences, Beijing 100049, China

show less

DOI: 10.3788/COL201715.102801 Cite this Article Set citation alerts

Guo Zhang, Jianfeng Sun, Yu Zhou, Zhiyong Lu, Guangyuan Li, Guangyu Cai, Mengmeng Xu, Bo Zhang, Chenzhe Lao, Hongyu He, Liren Liu. Imaging process and signal-to-noise ratio improvement of enhanced self-heterodyne synthetic aperture imaging ladar[J]. Chinese Optics Letters, 2017, 15(10): 102801 Copy Citation Text

EndNote(RIS)

BibTex

Plain Text

show less

Abstract

This Letter gives the general construction of an enhanced self-heterodyne synthetic aperture imaging ladar (SAIL) system, and proposes the principle of image processing. A point target is reconstructed in the enhanced self-heterodyne SAIL as well as in down-looking SAIL experiments, and the achieved imaging resolution of the enhanced self-heterodyne SAIL is analyzed. The signal-to-noise ratio (SNR) of the point target final image in the enhanced self-heterodyne SAIL is higher than that in the down-looking SAIL. The enhanced self-heterodyne SAIL can improve the SNR of the target image in far-distance imaging, with practicality.