Paper
23 August 2005 Active imaging at DARPA
J. C. Ricklin, P. G. Tomlinson
Author Affiliations +
Abstract
Active systems, because they provide their own illumination, are capable of operating 24 hours a day and are not dependent upon the angle of the sun. Unlike passive systems, they can provide three-dimensional imaging. DARPA is currently developing systems, technologies, and signal processing to pioneer new or improve existing capabilities that employ active imaging capabilities. These involve both radar and ladar, ranging from a few MHz for foliage penetration to near-visible IR to achieve ultra-high resolution at long range. These capabilities would improve Battlefield Awareness (BA) and provide persistent Intelligence, Surveillance, and Reconnaissance (ISR) to perform target detection, recognition, and identification. This paper discusses two different approaches to active optical imaging. One is a coherent approach that uses synthetic aperture techniques with infrared laser radar, and another approach uses only the intensity of the speckle pattern in the aperture plane. Both are capable of producing ultra-high resolution at long range.
© (2005) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
J. C. Ricklin and P. G. Tomlinson "Active imaging at DARPA", Proc. SPIE 5895, Target-in-the-Loop: Atmospheric Tracking, Imaging, and Compensation II, 589505 (23 August 2005); https://doi.org/10.1117/12.622572
Lens.org Logo
CITATIONS
Cited by 9 scholarly publications.
Advertisement
Advertisement
RIGHTS & PERMISSIONS
Get copyright permission  Get copyright permission on Copyright Marketplace
KEYWORDS
LIDAR

Imaging systems

Synthetic aperture radar

Atmospheric turbulence

Fourier transforms

Sensors

Spatial frequencies

Back to Top