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

• 来源期刊: 中国光学快报（英文版）
• 年，卷（期）: 2017,（10）
• 页码范围: 90-94
• 页数: 5页
• 语种: 英文
• DOI: 10.3788/COL201715.102801

摘要

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.