A monostatic strip-map mode interferometric synthetic aperture ladar (SAL) is reported. Using a chirped laser of about 5 mW at 1550 nm wavelength as the illumination source and two cross-track receiving apertures with a baseline of 1.6 mm, the ladar can generate both well-focused two-dimensional SAL images without adopting phase error removing techniques and three-dimensional images by interferometric SAL techniques. Detailed results are illustrated for retro-reflective or diffusive targets at a distance of 2.4 m.
© 2014 Chinese Optics Letters
(110.0110) Imaging systems : Imaging systems
(110.6880) Imaging systems : Three-dimensional image acquisition
(280.3640) Remote sensing and sensors : Lidar
(280.4788) Remote sensing and sensors : Optical sensing and sensors
Zhilong Zhao, Jin Wu, Yuanyuan Su, Na Liang, and Hongcheng Duan, "Three-dimensional imaging interferometric synthetic aperture ladar," Chin. Opt. Lett. 12, 091101- (2014)